CN104597630A - Compensation-column-introduced three-port optical circulator high in transmission rate and isolation - Google Patents
Compensation-column-introduced three-port optical circulator high in transmission rate and isolation Download PDFInfo
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- CN104597630A CN104597630A CN201410515224.6A CN201410515224A CN104597630A CN 104597630 A CN104597630 A CN 104597630A CN 201410515224 A CN201410515224 A CN 201410515224A CN 104597630 A CN104597630 A CN 104597630A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/09—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect
- G02F1/095—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect in an optical waveguide structure
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/09—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect
- G02F1/095—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect in an optical waveguide structure
- G02F1/0955—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect in an optical waveguide structure used as non-reciprocal devices, e.g. optical isolators, circulators
Abstract
The invention discloses a compensation-column-introduced three-port optical circulator high in transmission rate and isolation. The compensation-column-introduced three-port optical circulator comprises three photonic crystal crossed waveguides corresponding to three ports respectively, wherein the three ports are distributed on the periphery of a photonic crystal. A second dielectric material column is arranged at the crossed part of the central axes of the three photonic crystal crossed waveguides, and three identical magneto-optic material columns are arranged on the most adjacent parts of the second dielectric material column and distributed on the periphery of the crossed center of the three crossed waveguides in a 120-degree-angle rotation symmetric mode. Three identical third dielectric material columns, namely, compensation columns, are arranged on the secondary adjacent parts of the second dielectric material column, the three compensation columns are distributed on the periphery of the crossed center of the three crossed waveguides in a 120-degree-angle rotation symmetric mode, an electromagnetic wave signal is input from the port of any waveguide and output from the port of the next adjacent waveguide, and another port is in an isolation state to form one-way optical circular transmission. The compensation-column-introduced three-port optical circulator is compact in structure and facilitates the integration of other photonic crystal devices.
Description
Technical field
The invention belongs to photonic crystal circulator technical field, particularly relate to a kind of three port photon crystal rings row devices with the coupling of multiple magneto-optic memory technique post introducing compensation post.
Background technology
Along with the all-optical information treatment technology of current develop rapidly, compact conformation, be easy to integrated photon crystal device be subject to people's extensive concern and research in large-scale integrated light path system.Photonic crystal is a kind of specific inductive capacity or magnetic permeability is the Minisize materials arranged cycle or quasi-periodicity in space, and it can make the electromagnetic wave of certain frequency range not propagate wherein, thus forms photon band gap.So far, the multiple microdevice based on photonic crystal is in succession developed and develops, as high Q microcavity, fiber-optical probe, microwave filter, efficient laser, microsensor etc.It is one of the photonic device of new generation of the full optical integrated chip of the most potential realization that photonic crystal is described as.Successfully realize the photonic crystal logic integrated optical circuit that similar large scale integrated circuit is such, all-optical information technology will be made to reach a new high in processing speed, transmission quality, memory capacity etc.
In the optical path, the increase of integrated level can cause the interference of signal between element significantly to strengthen, and signal disturbing affects the serviceability of each element to a great extent, and whole system even will be caused abnormal.So, erasure signal interference and the stable problem becoming the integrated primary solution of raising light path of guarantee transmission.
In photon crystal structure, realize magneto-optic circulators is a comparatively recent studies on field, within 2005, is proposed first by S.Fan research group of Stanford Univ USA.So far, people have studied several photonic crystal magneto-optical circulator, but great majority are the structures based on dielectric substrate-air column type, and the photonic crystal magneto-optical circulator research for another kind of air substrate-dielectric column type is very few.Therefore, photonic crystal magneto-optical circulator research also exists a lot of technical matters to be needed to capture, particularly: in type of device, and the how circulator of effective exploitation air substrate-dielectric column type; In device architecture, how to obtain the circulator that compact conformation, form are simple and clear; In device performance, how to obtain the circulator of high-isolation high transmission rates.The solution of above technical matters, certainly will provide new thinking and developing direction for photonic crystal magneto-optical circulator research.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, a kind of compact conformation be provided, be easy to integrated, there is high-isolation, circulator that the one direction of high transmission rates goes in ring function.
Object of the present invention is achieved by following technical proposals.
Three-port circulator of the present invention comprises the 2 D photon crystal of the first medium column of material in triangular crystal lattice array arrangement in low-refraction background media, each first medium column of material occupies a lattice of triangular crystal lattice, also comprise three photonic crystal crossing waveguides and three ports, described three photonic crystal crossing waveguides are three cross connections and angle is the photon crystal wave-guide of 120 ° between any two, described three photonic crystal crossing waveguides are corresponding three ports respectively, and three ports are distributed in the peripheral end face of photonic crystal respectively; A second medium column of material is set in described three photon crystal wave-guide axis intersections, three identical magneto-optic memory technique posts are set respectively in the most adjacent place of described second medium column of material; Described three magneto-optic memory technique posts are distributed in hexagonal angle Rotational Symmetry around the crossing center of three crossing waveguides, and each magneto-optic memory technique post is positioned on the axis of its place waveguide; Three identical the 3rd dielectric material posts are set respectively in the second adjacent place of described second medium column of material; Described 3rd dielectric material post is for compensating post; Described three compensation posts are distributed in around the crossing center of three crossing waveguides with hexagonal angle Rotational Symmetry, and each compensation post is positioned on the axis of its place waveguide, electromagnetic wave signal is from any waveguide port input, to export from next adjacent waveguide port, another port is that isolation is to form one direction annular delivery.
Described low-refraction background media is air, vacuum, silicon dioxide, magnesium fluoride, or the dielectric material that refractive index is less than 1.5.
Described first medium column of material is silicon materials, gallium arsenide, titania, gallium nitride, or the dielectric material that refractive index is greater than 2.
The xsect of described first medium column of material is circular, square, or regular polygon, and the shape of cross section of described first medium column of material is preferably circular.
Described photon crystal wave-guide becomes 60 ° of angular direction along level respectively by the medium position of photonic crystal, become 180 ° of angular direction with level and become with level 300 ° of angular direction to remove several first medium column of materials, and by overall for the first medium column of material in outside between 60 ° and 180 ° along the outer translation distance b of 120 ° of axis, by overall for the first medium column of material in outside between 180 ° and 300 ° along the outer translation distance b of 240 ° of axis, three cross-coupled photon crystal wave-guides described in the first medium column of material entirety in outside between 300 ° and 60 ° is formed along 0 ° of axial right translation distance b, described
Described second medium column of material is silicon materials, gallium arsenide, titania, gallium nitride, or the dielectric material that refractive index is greater than 2; The xsect of described second medium column of material is equilateral triangle, becomes 60 ° of angular direction respectively, become 180 ° of angular direction and become 300 ° of angular direction with level with level in the middle part of it with the line at three tops with level.
Described three magneto-optic memory technique posts are respectively Ferrite Material, and its xsect is circular.
3rd dielectric material post is silicon materials, gallium arsenide, titania, gallium nitride, or the dielectric material that refractive index is greater than 2.
The xsect of described 3rd dielectric material post is equilateral triangle, circle, or regular polygon, the shape of cross section of described 3rd dielectric material post is preferably equilateral triangle, the direction, axis of a top its place photon crystal wave-guide corresponding of described equilateral triangle, and corresponding waveguide port direction, this top.
Photonic crystal circulator of the present invention is widely used in any electromagnetic wave bands, as microwave region, millimeter wave band, terahertz wave band, infrared band, or visible light wave range etc.The present invention compared with prior art, has following good effect.
1. utilize the characteristics of non-reciprocity of magneto-optic memory technique to make optical circulator, the signal one direction that can obtain in optical device between transmit port is gone in ring function, it can effectively anti-stop signal backflow, the mutual crosstalk of erasure signal, guarantee light path system normal operation.Magneto-optic circulators is indispensable function optimization device in integrated optical circuit.
.2. utilize in photonic crystal and compensate the serviceability that post can improve multiple coupling magneto-optic memory technique post, nonreciprocity laser propagation effect, design one not only compact conformation, be easy to integrated, and be convenient to the function i ntegration with other photon crystal device, realize the single directional light annular delivery of signal in the devices between three ports.
3. utilize compensation post to make magneto-optic memory technique post realize effectively mating with corresponding photon crystal wave-guide, obtain three port photonic crystal magneto-optical circulator performances of high-transmission efficiency, high-isolation, for photonic crystal integrated optical circuit system provides excellent anti-stop signal backflow, the circulator demand of erasure signal interference.
Accompanying drawing explanation
Below in conjunction with drawings and the specific embodiments, the invention will be further elaborated.
Fig. 1 is that the present invention introduces the structural representation compensating the high transmission rates of post and three port photocirculators of high-isolation.
In figure: air background 00 first medium column of material 01 second medium column of material 02 the 3rd dielectric material post 03 magneto-optic memory technique post A magneto-optic memory technique post B magneto-optic memory technique post C first wave guide port one 1 second waveguide port one 2 the 3rd waveguide port 13 duct width w
Fig. 2 is that the present invention introduces the isolation, the insertion loss figure that compensate the high transmission rates of post and three port photocirculators of high-isolation.
Fig. 3 is that the present invention introduces the first the laser propagation effect schematic diagram compensating the high transmission rates of post and three port photocirculators of high-isolation.
Fig. 4 is that the present invention introduces the compensation high transmission rates of post and three port photocirculator the second laser propagation effect schematic diagram of high-isolation.
Fig. 5 is that the present invention introduces the compensation high transmission rates of post and the third laser propagation effect schematic diagram of three port photocirculators of high-isolation.
Embodiment
As shown in Figure 1, the present invention introduces and compensates the high transmission rates of post and three port photocirculators of high-isolation, comprise low-refraction background media, described low-refraction background media is air background 00, the 2 D photon crystal of the first medium column of material 01 in triangular crystal lattice array arrangement in air background 00, each first medium column of material 01 occupies a lattice of triangular crystal lattice, the grating constant a of its photonic crystal is chosen for 10.0mm, described first medium column of material 01 adopts silicon materials, refractive index is 3.4, its shape of cross section adopts circular, and radius is r
1=2.0mm.In described photonic crystal, three cross connections and between any two angle be the photon crystal wave-guide of 120 °, described photon crystal wave-guide with the center of photonic crystal for starting point becomes 60 ° of angular direction respectively with level, become 180 ° of angular direction with level and become with level 300 ° of angular direction to remove several first medium column of materials 01, and by first medium column of material 01 entirety in outside between 60 ° and 180 ° along the outer translation distance b of 120 ° of axis, by first medium column of material 01 entirety in outside between 180 ° and 300 ° along the outer translation distance b of 240 ° of axis, by first medium column of material 01 entirety in outside between 300 ° and 60 ° along 0 ° of axial right translation distance b (wherein
a is the grating constant of photonic crystal), form three intersect and in hexagonal angle Rotational Symmetry distribution and width w be
photon crystal wave-guide.The length of described three photon crystal wave-guides is na, and width adjustment is
a is the grating constant of photonic crystal, n be more than or equal to 4 integer.
In the axis intersection of described three photon crystal wave-guides, namely the second medium column of material 02 that is played guiding function is introduced in the center intersection position of photonic crystal, described second medium column of material 02 adopts silicon materials, its refractive index is 3.4, this shape of cross section adopts equilateral triangle, and its center becomes 60 ° of angular direction respectively with the line on three summits, becomes 180 ° of angular direction and become 300 ° of angular direction with level with level with level.In the most adjacent place of described second medium column of material 02 respectively along on three photon crystal wave-guide axis, namely respectively along becoming 60 ° of angular direction with level, become 180 ° of angular direction with level and become with level on 300 ° of angular direction and introduce a same magnetic finish stock column A, B and C, described three magneto-optic memory technique post A, B and C is distributed in around the crossing center of three crossing waveguides respectively with hexagonal angle Rotational Symmetry, and each magneto-optic memory technique post is positioned on the axis of its place waveguide, each magneto-optic memory technique post (A, B or C) center and the centre distance of second medium column of material 02 be 0.67a, i.e. 6.7mm.Described magneto-optic memory technique post A, B and C adopt Ferrite Material respectively, and the shape of its xsect is circular, and specific inductive capacity is 12.9, and permeability tensor is:
Wherein κ=ω
mω/(ω
0 2-ω
2), μ
r=1+ κ ω
0/ ω, ω
0=μ
0γ H
0, ω
m=μ
0γ M
s, γ=1.759 × 10
11c/kg, M
s=2.39 × 10
5a/m.The magnetic field applied magneto-optic memory technique post A, B and C is H
0=3.45 × 10
5a/m.In the second adjacent place of described second medium column of material 02 respectively along direction, three photon crystal wave-guide axis being introduced a 3rd identical dielectric material post 03, namely the 3rd dielectric material post is for compensating post, 3rd dielectric material post 03 adopts silicon materials, its refractive index is 3.4, this shape of cross section adopts equilateral triangle, the direction, axis of its place photon crystal wave-guide of vertex correspondence of described equilateral triangle, and this vertex correspondence waveguide port direction.Described three compensation posts are distributed in hexagonal angle Rotational Symmetry around the crossing center of three crossing waveguides, and each compensation post is positioned on the axis of its place waveguide.The center of each the 3rd dielectric material post 03 and the centre distance of second medium column of material 02 are 1.3a, i.e. 13mm.
The described photonic crystal circulator compensating post of introducing comprises three waveguide port, be respectively first wave guide port one 1, second waveguide port one 2 and the 3rd waveguide port 13, described three waveguide port are corresponding three photonic crystal crossing waveguides respectively, and these three waveguide port are distributed in the peripheral end face of photonic crystal respectively.
Further, the described structural parameters introducing the photonic crystal circulator compensating post are optimized: it is incident from first wave guide port one 1 that electromagnetic wave signal is set, detect the electromagnetic wave signal power of respective waveguide port respectively at the second waveguide port one 2 and the 3rd waveguide port 13, and the insertion loss setting the second waveguide port one 2 is 10log (P
input/ P
export), and the isolation of the 3rd waveguide port 13 is 10log (P
input/ P
isolation), wherein P
input, P
exportand P
isolationbe respectively input port, i.e. signal power, the output port of first wave guide port one 1 detection, i.e. the signal power of the second waveguide port one 2 detection and isolated port, i.e. the signal power of the 3rd port one 3 detection.Be 2.7mm by optimizing the equilateral triangle length of side of described second medium column of material 02, the equilateral triangle length of side of the 3rd dielectric material post 03 is 2.0mm, the cylindrical radius of magneto-optic memory technique post A, B and C is respectively 2.55mm, obtains the insertion loss of three port photon crystal rings row devices and isolation calculated curve as shown in Figure 2.In fig. 2, solid line and dotted line represent the insertion loss of the second waveguide port one 2 and the isolation of the 3rd waveguide port 13 under different frequency respectively.Fig. 2 shows, the frequency of operation of this photonic crystal circulator is 10.58GHz to 10.68GHz, and the insertion loss of the second waveguide port one 2 in this frequency range is low to moderate 0.022dB, and the isolation of the 3rd waveguide port 13 is up to 23.4dB.
Due to structure rotational symmetry, said structure parameter optimization is equally applicable to electromagnetic wave signal and inputs from the second waveguide port one 2, export from the 3rd waveguide port 13 again, or input from the 3rd waveguide port 13, exporting from first wave guide port one 1, function calculating curve and Fig. 2 of obtaining circulator come to the same thing again.
The serviceability of three port photon crystal rings row devices is checked according to above-mentioned optimum results:
With reference to Fig. 3, adopt the electromagnetic wave of any a certain frequency in 10.58GHz to 10.68GHz frequency range, if frequency is that the electromagnetic wave of 10.62GHz is from first wave guide port one 1 incidence, magneto-optic memory technique post A and B is taken up in order of priority and implements 60 ° of angles to electromagnetic wave and rotate, last electromagnetic wave exports from the second waveguide port one 2, and the insertion loss of the second waveguide port one 2 is 0.022dB.Second medium column of material 02 wherein in photonic crystal guides magneto-optic memory technique post A and B to be effectively coupled.3rd waveguide port 13 is in light isolation, and wherein magneto-optic memory technique post C has the effect of signal isolation to the 3rd waveguide port 13, and the isolation of the 3rd waveguide port 13 is 23.4dB.3rd dielectric material post 03 plays the effect compensating magneto-optic memory technique post A and magneto-optic memory technique post B and respective waveguide mismatch, thus effectively can improve signal from waveguide port 11 to the transfer efficiency of waveguide port 12.
With reference to Fig. 4, frequency is adopted to be that the electromagnetic wave of 10.62GHz is from the second waveguide port one 2 incidence, magneto-optic memory technique post B and C is taken up in order of priority and implements 60 ° of angles to electromagnetic wave and rotate, and last electromagnetic wave exports from the 3rd waveguide port 13, and the insertion loss of the 3rd waveguide port 13 is 0.022dB.Second medium column of material 02 wherein in photonic crystal guides magneto-optic memory technique post B and C to be effectively coupled.First wave guide port one 1 is in light isolation, and wherein magneto-optic memory technique post A has the effect of signal isolation to first wave guide port one 1, and the isolation of first wave guide port one 1 is 23.4dB.3rd dielectric material post 03 plays the effect compensating magneto-optic memory technique post B and magneto-optic memory technique post C and respective waveguide mismatch, thus effectively can improve signal from waveguide port 12 to the transfer efficiency of waveguide port 13.
With reference to Fig. 5, frequency is adopted to be that the electromagnetic wave of 10.62GHz is from the 3rd waveguide port 13 incidence, magneto-optic memory technique post C and A is taken up in order of priority and implements 60 ° of angles to electromagnetic wave and rotate, and last electromagnetic wave exports from first wave guide port one 1, and the insertion loss of first wave guide port one 1 is 0.022dB.Second medium column of material 02 wherein in photonic crystal guides magneto-optic memory technique post C and A to be effectively coupled.Second waveguide port one 2 is in light isolation, and wherein magneto-optic memory technique post B has the effect of signal isolation to the second waveguide port one 2, and the isolation of the second waveguide port one 2 is 23.4dB.3rd dielectric material post 03 plays the effect compensating magneto-optic memory technique post C and magneto-optic memory technique post A and respective waveguide mismatch, thus effectively can improve signal from waveguide port 13 to the transfer efficiency of waveguide port 11.
Will by counterclockwise exporting from next adjacent waveguide port from the electromagnetic wave signal of any waveguide port input in this photonic crystal three port magneto-optic circulators, another port in three ports is isolating electromagnetic signal port, namely realizes the single directional light annular delivery function between three ports.
Photonic crystal three-port circulator of the present invention is not limited to the above embodiment, if those skilled in the art are according to disclosed technical scheme, and according to photonic crystal equal proportion convergent-divergent principle and selection respective material, photonic crystal equal proportion convergent-divergent principle is: the operation wavelength of circulator and photonic crystal lattice constant, the size of the first medium column of material in photonic crystal, the size of second medium column of material, and the isoparametric relation of the size of magneto-optic memory technique post meets proportional relationship, namely above parameter expands or reduces e doubly, the also corresponding expansion or reduce e doubly of the operation wavelength of circulator.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. introduce the compensation high transmission rates of post and three port photocirculators of high-isolation for one kind, it comprises the 2 D photon crystal of the first medium column of material in triangular crystal lattice array arrangement in low-refraction background media, each first medium column of material occupies a lattice of triangular crystal lattice, it is characterized in that, also comprise three photonic crystal crossing waveguides and three ports, described three photonic crystal crossing waveguides are three cross connections and angle is the photon crystal wave-guide of 120 ° between any two, described three photonic crystal crossing waveguides are corresponding three ports respectively, three ports are distributed in the peripheral end face of photonic crystal respectively, a second medium column of material is set in described three photon crystal wave-guide axis intersections, three identical magneto-optic memory technique posts are set respectively in the most adjacent place of described second medium column of material, described three magneto-optic memory technique posts are distributed in hexagonal angle Rotational Symmetry around the crossing center of three crossing waveguides, and each magneto-optic memory technique post is positioned on the axis of its place waveguide, three identical the 3rd dielectric material posts are set respectively in the second adjacent place of described second medium column of material, described 3rd dielectric material post is for compensating post, described three compensation posts are distributed in around the crossing center of three crossing waveguides with hexagonal angle Rotational Symmetry, and each compensation post is positioned on the axis of its place photon crystal wave-guide, electromagnetic wave signal is from any waveguide port input, to export from next adjacent waveguide port, another port is that isolation is to form one direction annular delivery.
2. compensate the high transmission rates of post and three port photocirculators of high-isolation according to introducing according to claim 1, it is characterized in that, described low-refraction background media is air, vacuum, silicon dioxide, magnesium fluoride, or the dielectric material that refractive index is less than 1.5.
3. compensate the high transmission rates of post and three port photocirculators of high-isolation according to introducing according to claim 1, it is characterized in that, described first medium column of material is silicon materials, gallium arsenide, titania, gallium nitride, or the dielectric material that refractive index is greater than 2.
4. compensate the high transmission rates of post and three port photocirculators of high-isolation according to introducing according to claim 1, it is characterized in that, the xsect of described first medium column of material is circular, square, or regular polygon, and described first medium column of material xsect is preferably circular.
5. compensate the high transmission rates of post and three port photocirculators of high-isolation according to introducing according to claim 1, it is characterized in that, described photon crystal wave-guide becomes 60 ° of angular direction along level respectively by the medium position of photonic crystal, become 180 ° of angular direction with level and become with level 300 ° of angular direction to remove several first medium column of materials, and by overall for the first medium column of material in outside between 60 ° and 180 ° along the outer translation distance b of 120 ° of axis, by overall for the first medium column of material in outside between 180 ° and 300 ° along the outer translation distance b of 240 ° of axis, three cross-coupled photon crystal wave-guides described in the first medium column of material entirety in outside between 300 ° and 60 ° is formed along 0 ° of axial right translation distance b, described
6. compensate the high transmission rates of post and three port photocirculators of high-isolation according to introducing according to claim 1, it is characterized in that, described second medium column of material is silicon materials, gallium arsenide, titania, gallium nitride, or the dielectric material that refractive index is greater than 2; The xsect of described second medium column of material is equilateral triangle, becomes 60 ° of angular direction respectively, become 180 ° of angular direction and become 300 ° of angular direction with level with level in the middle part of it with the line at three tops with level.
7. compensate the high transmission rates of post and three port photocirculators of high-isolation according to introducing according to claim 1, it is characterized in that, described three magneto-optic memory technique posts are respectively Ferrite Material, and its xsect is circular.
8. compensate the high transmission rates of post and three port photocirculators of high-isolation according to introducing described in claim 1, it is characterized in that, the 3rd dielectric material post is silicon materials, gallium arsenide, titania, gallium nitride, or the dielectric material that refractive index is greater than 2.
9. compensate the high transmission rates of post and three port photocirculators of high-isolation according to introducing according to claim 1, it is characterized in that, the xsect of described 3rd dielectric material post is equilateral triangle, circle, or regular polygon, described 3rd dielectric material post xsect is preferably equilateral triangle, the direction, axis of a top its place photon crystal wave-guide corresponding of described equilateral triangle, and corresponding waveguide port direction, this top.
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| PCT/CN2015/090882 WO2016050183A1 (en) | 2014-09-29 | 2015-09-28 | Compensation-column-introduced three-port optical circulator having high transmission rate and isolation |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016050183A1 (en) * | 2014-09-29 | 2016-04-07 | 深圳大学 | Compensation-column-introduced three-port optical circulator having high transmission rate and isolation |
| CN105572918A (en) * | 2016-02-15 | 2016-05-11 | 欧阳征标 | Magnetic control alternative optical path switch based on photonic crystal cross waveguide |
| CN105572921A (en) * | 2016-02-15 | 2016-05-11 | 欧阳征标 | Magnetic control alternative right-angled output optical path switch based on photonic crystal T-type waveguide |
| CN115144962A (en) * | 2021-03-31 | 2022-10-04 | 南京星隐科技发展有限公司 | Electromagnetic wave transmission structure, device and optical chip |
| CN115343803A (en) * | 2022-08-23 | 2022-11-15 | 中国地质大学（武汉） | Annular wavelength demultiplexer arranged on silicon substrate and design method thereof |
| CN116068696A (en) * | 2023-03-03 | 2023-05-05 | 深圳麦赫科技有限公司 | Flat-plate photonic crystal circulator |
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| CN104597630B (en) * | 2014-09-29 | 2019-04-23 | 欧阳征标 | A kind of three port photocirculators of the high transmission rates for introducing compensation column and high-isolation |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016050183A1 (en) * | 2014-09-29 | 2016-04-07 | 深圳大学 | Compensation-column-introduced three-port optical circulator having high transmission rate and isolation |
| CN105572918A (en) * | 2016-02-15 | 2016-05-11 | 欧阳征标 | Magnetic control alternative optical path switch based on photonic crystal cross waveguide |
| CN105572921A (en) * | 2016-02-15 | 2016-05-11 | 欧阳征标 | Magnetic control alternative right-angled output optical path switch based on photonic crystal T-type waveguide |
| CN105572921B (en) * | 2016-02-15 | 2021-02-19 | 深圳大学 | Magnetic control alternative right-angle output light path switch based on photonic crystal T-shaped waveguide |
| CN105572918B (en) * | 2016-02-15 | 2021-02-19 | 深圳大学 | Magnetic control alternative optical path switch based on photonic crystal cross waveguide |
| CN115144962A (en) * | 2021-03-31 | 2022-10-04 | 南京星隐科技发展有限公司 | Electromagnetic wave transmission structure, device and optical chip |
| CN115144962B (en) * | 2021-03-31 | 2024-02-06 | 南京星隐科技发展有限公司 | Electromagnetic wave transmission structure, device and optical chip |
| CN115343803A (en) * | 2022-08-23 | 2022-11-15 | 中国地质大学（武汉） | Annular wavelength demultiplexer arranged on silicon substrate and design method thereof |
| CN116068696A (en) * | 2023-03-03 | 2023-05-05 | 深圳麦赫科技有限公司 | Flat-plate photonic crystal circulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104597630B (en) | 2019-04-23 |
| WO2016050183A1 (en) | 2016-04-07 |
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