CN105388572A - Optical interconnection module - Google Patents
Optical interconnection module Download PDFInfo
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- CN105388572A CN105388572A CN201511005161.0A CN201511005161A CN105388572A CN 105388572 A CN105388572 A CN 105388572A CN 201511005161 A CN201511005161 A CN 201511005161A CN 105388572 A CN105388572 A CN 105388572A
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- support plate
- module
- optical
- light
- locating slot
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4287—Optical modules with tapping or launching means through the surface of the waveguide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4286—Optical modules with optical power monitoring
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4292—Coupling light guides with opto-electronic elements the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements
- G02B6/4293—Coupling light guides with opto-electronic elements the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements hybrid electrical and optical connections for transmitting electrical and optical signals
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
Abstract
The embodiment of the invention provides an optical interconnection module which comprises a first carrier plate, a second carrier plate, a third carrier plate, an optical transmitter module, at least one optical detection module and a beam splitting module. The optical detection modules are arranged on the surface of the first carrier plate, the beam splitting module is arranged on the surface of the second carrier plate, the optical transmitter module is arranged on the surface of the third carrier plate, the second carrier plate and the third carrier plate are arranged on the first carrier plate, and the surface of the second carrier plate is provided with at least one optical through hole. The beam splitting module is located between the optical transmitter module and an external optical fiber and used for transmitting an uplink optical signal sent by the optical transmitter module to the external optical fiber and transmitting at least one downlink optical signal from the external optical fiber to the optical detection module through the optical through holes respectively. According to the optical interconnection module, the problem that integrated assembly of optical links of an existing optical interconnection product is achieved by relying on secondary packaging is solved.
Description
Technical field
The present invention relates to technical field of semiconductor device, be specifically related to a kind of light network module.
Background technology
Along with the continuous growth of bandwidth demand, EPON (PON) technology has become one of hot technology of each telecom operators of whole world concern at present, and Ye Shi operator implements the technical foundation of " broadband speed-raising ", " light entering and copper back " engineering.
GPON (Gigabit-CapablePON) technology is the latest generation broadband passive light Integrated access standard based on ITU-TG.984.x standard, there is high bandwidth, high-level efficiency, large coverage, user interface is abundant waits many merits, be considered as realizing Access Network business by most of operator broadband, the desirable technique of synthesization transformation, with it arranged side by side also have EPON BPON.No matter be adopt which kind of passive optical network technique above-mentioned, the core realizing light network product is to build a kind of single fiber bi-directional transmitting-receiving framework.The described two-way optical wavelength transmission referring to uplink and downlink is in systems in which two kinds, such as 1310nm and 1490nm, or 1310nm and 1550nm.Which kind of wavelength of concrete selection realizes the data transmission of up-downgoing, depends on concrete system link and the requirement of data bandwidth.But what have pervasive demand is, this series products is single-mode optical transmission system usually, for single-mode fiber transmission system, due in single-mode optical link, luminous mould spot, optical fiber core diameter size are all smaller, coupling difficulty is large, technological requirement is high, scheme more common at present, be adopt the form of sub-encapsulation to realize integrated assembling, first transmitting terminal and receiving end adopted level Hermetic Package respectively, the form of such as TOSA and ROSA, then the sub-packaging body of transmitting terminal and receiving end is assembled in inside transceiver, then coordinates peripheral match circuit to realize whole product.But the encapsulating material that sub-encapsulation adopts can sacrifice the partial properties of optical device, and can increase cost.
Summary of the invention
In view of this, embodiments provide a kind of light network module, the optical link solved in prior art in light network product will rely on sub-encapsulation and realize integrated assembly problem.
A kind of light network module that one embodiment of the invention provides comprises: the first support plate, the second support plate, the 3rd support plate, light emission module, at least one photodetection module and beam splitting module;
Wherein, at least one photodetection module installation described is on described first support plate surface, described beam splitting module installation is on described second support plate surface, described light emission module is arranged on described 3rd support plate surface, described second support plate and described 3rd support plate are arranged on above described first support plate, and described second support plate surface is provided with at least one optical through-hole;
Wherein, described beam splitting module is between described light emission module and external optical fiber, uplink optical signal for being sent by described light emission module is transferred to described external optical fiber, and at least one downlink optical signal from described external optical fiber is transferred to a described photodetection module respectively by a described optical through-hole.
Further, described light network module comprises further:
At least one lens, is arranged on described second support plate surface; Wherein each described lens and a described optical through-hole optical alignment, for converging a downlink optical signal from described beam splitting module.
Further, at least one lens described are sphere lens, and the hole wall of at least one optical through-hole described is tapered.
Further, described beam splitting module comprises:
At least one anti-reflective film, is provided for the uplink optical signal that described light emission module sends and passes through, and at least one downlink optical signal from described external optical fiber is reflexed to described light beam respectively turns to prism; And,
Light beam turns to prism, at least one downlink optical signal described is diverted to a described optical through-hole respectively.
Further, described light network module comprises further: at least one group of locating slot, locating slot of often organizing wherein comprises the relative upper locating slot in position and lower locating slot, and described upper locating slot is positioned at the second support plate lower surface, and described lower locating slot is positioned at the first support plate upper surface; And,
At least one locates isolator, and each location isolator is wherein arranged between described first support plate and the second support plate, for a described upper locating slot and a described lower locating slot adaptive.
Further, the cell wall of described upper locating slot and described lower locating slot is tapered, and described location isolator is spherical.
Further, described light network module comprises further:
Pad, is arranged between described 3rd support plate and described first support plate, for adjusting the height of described light emission module on described 3rd support plate.
Further, described light network module comprises further:
First optical coupled block, is arranged between described light emission module and described beam splitting module; And/or,
Second optical coupled block, is arranged between described beam splitting module and described external optical fiber.
Further, the coupling element that described first optical coupled block and/or the second optical coupled block adopt is the optical fiber of lens or gradually changed refractive index; And/or,
Described first optical coupled block and/or the second optical coupled block adopt optics colloid and described beam splitting module glued together.
Further, described light network module comprises further:
Monitoring detecting module, is arranged on described 3rd support plate, carries out power monitoring for the light signal sent described light emission module.
A kind of light network module that the embodiment of the present invention provides, three support plates are utilized to carry light emission module, photodetection module and beam splitting module in light network module respectively, and define by the integrated of these three support plates the complete optical link comprising light transmitting terminal and photodetection end, avoid the performance impact of sub-packaging technology to optical device.In addition, owing to adopting support plate integrated technology to define sub-assembly, the miniaturization realizing whole product is more conducive to.
Accompanying drawing explanation
Figure 1 shows that the structural representation of a kind of light network module that one embodiment of the invention provides.
Figure 2 shows that the structural representation of a kind of light network module that another embodiment of the present invention provides.
Figure 3 shows that the structural representation of beam splitting module in a kind of light network module that another embodiment of the present invention provides.
Figure 4 shows that the structure vertical view of a kind of light network module that another embodiment of the present invention provides.
Figure 5 shows that the structure side view of the light network module shown in Fig. 4.
Figure 6 shows that the structural representation of the first optical coupled block in a kind of light network module that one embodiment of the invention provides.
Figure 7 shows that the structural representation of the second optical coupled block in a kind of light network module that one embodiment of the invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Figure 1 shows that the structural representation of a kind of light network module that one embodiment of the invention provides.As shown in Figure 1, this light network module comprises: the first support plate 1, second support plate 2, the 3rd support plate 3, light emission module, at least one photodetection module and beam splitting module 6.The laser driving chip 42 that light emission module wherein specifically can comprise a laser instrument 41 (such as wavelength of transmitted light is the distributed feedback laser of 1310nm) and be connected with this laser instrument 41, photodetection module can specifically comprise a photodetector 51 with one be connected with this photodetector 51 across hindering amplification chip 52.
At least one photodetection module installation is on the first support plate 1 surface, beam splitting module 6 is arranged on the second support plate 2 surface, light emission module is arranged on the 3rd support plate 3 surface, and the second support plate 2 and the 3rd support plate 3 are arranged on above the first support plate 1, and the second support plate 2 surface is provided with at least one optical through-hole 21.Beam splitting module 6 is between light emission module and external optical fiber 7, uplink optical signal for being sent by light emission module is transferred to external optical fiber 7, and at least one downlink optical signal from external optical fiber 7 is transferred to a photodetection module respectively by an optical through-hole 21.
Based on above structure, in this light network module, the implementation procedure of optical link can be: on the 3rd support plate 3 laser driving chip 42 driving under, laser instrument 41 sends uplink optical signal, and is transferred to external optical fiber 7 by beam splitting module 6; And for the downlink optical signal from external optical fiber 7, then be diverted to an optical through-hole 21 by beam splitting module 6, and transmit each photodetection module further by this optical through-hole 21, after light signal is converted to electric signal by the photodetector 51 in photodetection module, this electric signal is amplified across resistance amplification chip 52 and decodes.
Be to be understood that, external optical fiber 7 may return the different downlink optical signal of multiple wavelength, optical through-hole 21 on corresponding second support plate 2 of each downlink optical signal wherein and the photodetection module on first support plate 1, therefore the quantity of the present invention to downlink optical signal, optical through-hole 21 and photodetection module does not all limit.
As can be seen here, the embodiment of the present invention utilizes three support plates to carry light emission module, photodetection module and beam splitting module 6 in light network module respectively, and define by the integrated of these three support plates the complete optical link comprising light transmitting terminal and photodetection end, avoid the performance impact of sub-packaging technology to optical device.In addition, owing to adopting support plate integrated technology to define sub-assembly, the miniaturization realizing whole product is more conducive to.
In an embodiment of the present invention, provide rigid support because the first support plate 1 is responsible for whole light network module, pottery or glass material therefore can be adopted to make.
In an embodiment of the present invention, as shown in Figure 2, when needing the light signal sent light emission module to carry out power monitoring, 3rd support plate 3 can be arranged further one monitoring detecting module, this monitoring detecting module also can comprise a photodetector 51 with one be connected with this photodetector 51 across hindering amplification chip 52.
In an embodiment of the present invention, in order to improve the degree of coupling between downlink optical signal and photodetection module, at least one lens 22 can be set further on the second support plate 2 surface.Each lens 22 wherein and optical through-hole 21 optical alignment, for converging a downlink optical signal from beam splitting module 6.In a further embodiment, as shown in Figure 2, lens 22 are wherein spherical, and the hole wall of corresponding optical through-hole 21 is tapered, to realize the location of this sphere lens 22 and to hold.The positioning precision of tapered optical through-hole 21 on three dimensions x-axis, y-axis and z-axis direction can be respectively ± 5um.Because spherical and adaptation ratio that is bellmouth are easier to, the assembly difficulty between the first support plate 1 and the second support plate 2 can be reduced so further.
In an alternative embodiment of the invention, because the uplink optical signal from light emission module is different from the wavelength of the downlink optical signal from external optical fiber 7, the differentiation that beam splitting module 6 realizes uplink optical signal and downlink optical signal by anti-reflective film turns to, and utilizes a light beam to turn to prism 61 to realize turning to further of downlink optical signal.Specifically, this beam splitting module can comprise at least one anti-reflective film and light beam turns to prism 61, each anti-reflective film wherein can make uplink optical signal (such as wavelength is 1310nm) pass through, and a downlink optical signal from external optical fiber 7 is reflexed to light beam respectively turn to prism 61, light beam turns to 61, prism that this downlink optical signal is diverted to an optical through-hole 21 further.Such as, as shown in Figure 3, when the downlink optical signal from external optical fiber 7 has two bundles, when wavelength is respectively 1490nm and 1550nm, two anti-reflective films can be comprised in this beam splitting module, respectively this two bundles downlink optical signal is reflexed to light beam and turn to prism 61, then turn to prism 61 to be diverted to each self-corresponding optical through-hole 21 by this light beam.Should be appreciated that because the downlink optical signal from external optical fiber 7 may be incessantly a branch of, can comprise multiple anti-reflective film in beam splitting module 6, the quantity of antagonistic reflex film of the present invention does not limit.
In an embodiment of the present invention, this light network module also can comprise further: pad 8.As shown in Figure 2, pad 8 is arranged between the 3rd support plate 3 and the first support plate 1, for adjusting the height of the 3rd support plate 3 light emission module.Like this when the height of light emission module needs to adjust, only need the pad 8 changing different-thickness, and again need not prepare the 3rd support plate 3 being integrated with light emission module, realize thus assembling more flexibly.
Figure 4 shows that the structure vertical view of a kind of light network module that another embodiment of the present invention provides.Figure 5 shows that the structure side view of the light network module shown in Fig. 4.As shown in Figure 4 and Figure 5, this light network module comprises further: at least one group of locating slot and at least one location isolator 11.
Locating slot of often organizing wherein comprises the relative upper locating slot 12 in position and lower locating slot 13, and upper locating slot 12 is positioned at the second support plate 2 lower surface, and lower locating slot 13 is positioned at the first support plate 1 upper surface; Each location isolator 11 is wherein arranged between the first support plate 1 and the second support plate 2, for going up locating slot 12 and lower locating slot 13 adaptation with one.Like this when realizing the assembling between the first support plate 1 and the second support plate 2, directly each location isolator 11 and corresponding upper locating slot 12 and lower locating slot 13 being aimed at embedding and can realize aiming at and assemble, reducing assembly difficulty.In a further embodiment, the cell wall of upper locating slot 12 and lower locating slot 13 is tapered, and location isolator 11 is spherical.Because spherical and adaptation ratio that is bellmouth are easier to, the assembly difficulty between the first support plate 1 and the second support plate 2 is able to further reduction.Should be appreciated that quantity and the setting position of location isolator 11 and up/down locating slot 13 can adjust flexibly according to integrated optical device on the concrete shape of support plate and the first support plate 1/ second support plate 2, the present invention does not limit this.
In an embodiment of the present invention, in order to improve from the degree of coupling between the uplink optical signal of light emission module and beam splitting module 6, improve alignment tolerance, a first optical coupled block 91 also can be set further between light emission module and beam splitting module 6.In like manner, a second optical coupled block 92 also can be set further between beam splitting module 6 and external optical fiber 7.This first optical coupled block 91 and the second optical coupled block 92 can adopt respectively optics colloid and beam splitting module 6 glued together, the refractive index of optics colloid need match with uplink optical signal or downlink optical signal, or gummed process in add index-matching fluid.In addition, in this first optical coupled block 91 and the second optical coupled block 92, the specific implementation form of coupling element 93 can be the optical fiber of lens or gradually changed refractive index, and the specific implementation form of the present invention to coupling element 93 does not limit.In a further embodiment, this coupling element 93 can be fixed in a V-type geosynclinal block.Be illustrated in figure 6 the structural representation of the V-type geosynclinal block in the first optical coupled block 91, this V-type geosynclinal block comprises the passage 94 of at least one V-type groove shape, can arrange a coupling element 93 (optical fiber of lens or gradually changed refractive index) in each passage 94.Similarly, the structure of the V-type geosynclinal block in the second optical coupled block 92 can be as shown in Figure 7.Be to be understood that, in V-type geosynclinal block, the quantity of the quantity of passage 94, coupling element 93 can be determined according to the quantity of transmitted light signal quantity or external optical fiber, and the present invention does not all limit the quantity of coupling element 93 in the quantity of passage 94 in a V-type geosynclinal block and an optical coupled block.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a light network module, is characterized in that, comprising: the first support plate, the second support plate, the 3rd support plate, light emission module, at least one photodetection module and beam splitting module;
Wherein, at least one photodetection module installation described is on described first support plate surface, described beam splitting module installation is on described second support plate surface, described light emission module is arranged on described 3rd support plate surface, described second support plate and described 3rd support plate are arranged on above described first support plate, and described second support plate surface is provided with at least one optical through-hole;
Wherein, described beam splitting module is between described light emission module and external optical fiber, uplink optical signal for being sent by described light emission module is transferred to described external optical fiber, and at least one downlink optical signal from described external optical fiber is transferred to a described photodetection module respectively by a described optical through-hole.
2. light network module according to claim 1, is characterized in that, comprise further:
At least one lens, is arranged on described second support plate surface; Wherein each described lens and a described optical through-hole optical alignment, for converging a downlink optical signal from described beam splitting module.
3. light network module according to claim 2, is characterized in that, at least one lens described are sphere lens, and the hole wall of at least one optical through-hole described is tapered.
4. light network module according to claim 1, is characterized in that, described beam splitting module comprises:
At least one anti-reflective film, is provided for the uplink optical signal that described light emission module sends and passes through, and at least one downlink optical signal from described external optical fiber is reflexed to described light beam respectively turns to prism; And,
Light beam turns to prism, at least one downlink optical signal described is turned to optical through-hole described at least one respectively.
5. light network module according to claim 1, it is characterized in that, comprise further: at least one group of locating slot, locating slot of often organizing wherein comprises the relative upper locating slot in position and lower locating slot, described upper locating slot is positioned at the second support plate lower surface, and described lower locating slot is positioned at the first support plate upper surface; And,
At least one locates isolator, and each location isolator is wherein arranged between described first support plate and the second support plate, for a described upper locating slot and a described lower locating slot adaptive.
6. light network module according to claim 5, is characterized in that, the cell wall of described upper locating slot and described lower locating slot is tapered, and described location isolator is spherical.
7. light network module according to claim 1, is characterized in that, comprise further:
Pad, is arranged between described 3rd support plate and described first support plate, for adjusting the height of described light emission module on described 3rd support plate.
8. light network module according to claim 1, is characterized in that, comprise further:
First optical coupled block, is arranged between described light emission module and described beam splitting module; And/or,
Second optical coupled block, is arranged between described beam splitting module and described external optical fiber.
9. light network module according to claim 8, is characterized in that, the coupling element that described first optical coupled block and/or the second optical coupled block adopt is the optical fiber of lens or gradually changed refractive index; And/or,
Described first optical coupled block and/or the second optical coupled block adopt optics colloid and described beam splitting module glued together.
10., according to described light network module arbitrary in claim 1 to 9, it is characterized in that, comprise further:
Monitoring detecting module, is arranged on described 3rd support plate, carries out power monitoring for the light signal sent described light emission module.
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| CN201511005161.0A CN105388572B (en) | 2015-12-28 | 2015-12-28 | Optical interconnection module |
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| CN201511005161.0A CN105388572B (en) | 2015-12-28 | 2015-12-28 | Optical interconnection module |
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| CN105388572A true CN105388572A (en) | 2016-03-09 |
| CN105388572B CN105388572B (en) | 2017-07-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109698723A (en) * | 2018-12-29 | 2019-04-30 | 武汉大学 | A kind of fully integrated photoreceiver of silica-based high speed for chip chamber light network |
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| JP3179743B2 (en) * | 1996-08-28 | 2001-06-25 | アジレント・テクノロジーズ・インク | Manufacturing method of photonics device |
| US20030152336A1 (en) * | 2002-02-12 | 2003-08-14 | Igor Gurevich | Optical module for high-speed bidirectional transceiver |
| US20060110106A1 (en) * | 2004-11-25 | 2006-05-25 | Ming-Lang Tsai | Fiber waveguide optical subassembly module |
| CN201360065Y (en) * | 2009-02-03 | 2009-12-09 | 杨逸智 | Connector |
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2015
- 2015-12-28 CN CN201511005161.0A patent/CN105388572B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3179743B2 (en) * | 1996-08-28 | 2001-06-25 | アジレント・テクノロジーズ・インク | Manufacturing method of photonics device |
| US20030152336A1 (en) * | 2002-02-12 | 2003-08-14 | Igor Gurevich | Optical module for high-speed bidirectional transceiver |
| US20060110106A1 (en) * | 2004-11-25 | 2006-05-25 | Ming-Lang Tsai | Fiber waveguide optical subassembly module |
| CN201360065Y (en) * | 2009-02-03 | 2009-12-09 | 杨逸智 | Connector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109698723A (en) * | 2018-12-29 | 2019-04-30 | 武汉大学 | A kind of fully integrated photoreceiver of silica-based high speed for chip chamber light network |
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