WO2002016901A3 - Instrument measuring chromatic dispersion in optical fibers - Google Patents

Instrument measuring chromatic dispersion in optical fibers Download PDF

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Publication number
WO2002016901A3
WO2002016901A3 PCT/IB2001/001491 IB0101491W WO0216901A3 WO 2002016901 A3 WO2002016901 A3 WO 2002016901A3 IB 0101491 W IB0101491 W IB 0101491W WO 0216901 A3 WO0216901 A3 WO 0216901A3
Authority
WO
WIPO (PCT)
Prior art keywords
pulse
led
chromatic dispersion
optical fibers
instrument
Prior art date
Application number
PCT/IB2001/001491
Other languages
French (fr)
Other versions
WO2002016901A2 (en
Inventor
Juergen Brendel
Original Assignee
Luciol Instr
Juergen Brendel
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Luciol Instr, Juergen Brendel filed Critical Luciol Instr
Priority to AU2001276642A priority Critical patent/AU2001276642A1/en
Priority to US10/344,922 priority patent/US6912046B2/en
Publication of WO2002016901A2 publication Critical patent/WO2002016901A2/en
Publication of WO2002016901A3 publication Critical patent/WO2002016901A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
    • G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
    • G01M11/3163—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR by measuring dispersion

Abstract

An instrument for measuring chromatic dispersion in optical fibers. The instrument comprises two independent modules, an optical source (2') and a receiver (4'). The optical source (2') comprises two pulse producing circuits: one driving a laser (35), which will be used as a timing reference, and the second driving a light emitting diode (LED) (34), emitting a short light pulse with a broad spectrum. The receiver (4') comprises a wavelength-selection element (46), which filters one or several wavelengths out of the LED spectrum, a photodetector (43) for detection of the laser pulse, a photon-counting detector (41) for detection of the filtered LED pulses, and a high-resolution timing circuit (42) for measuring the time delay between the laser pulse and the LED pulse. A preferred embodiment includes the wavelength-selection element (46) which is a series of Bragg gratings, thus selecting several fixed wavelengths.
PCT/IB2001/001491 2000-08-22 2001-08-16 Instrument measuring chromatic dispersion in optical fibers WO2002016901A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2001276642A AU2001276642A1 (en) 2000-08-22 2001-08-16 Instrument measuring chromatic dispersion in optical fibers
US10/344,922 US6912046B2 (en) 2000-08-22 2001-08-16 Instrument measuring chromatic dispersion in optical fibers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22743700P 2000-08-22 2000-08-22
US60/227,437 2000-08-22

Publications (2)

Publication Number Publication Date
WO2002016901A2 WO2002016901A2 (en) 2002-02-28
WO2002016901A3 true WO2002016901A3 (en) 2002-06-27

Family

ID=22853103

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2001/001491 WO2002016901A2 (en) 2000-08-22 2001-08-16 Instrument measuring chromatic dispersion in optical fibers

Country Status (2)

Country Link
AU (1) AU2001276642A1 (en)
WO (1) WO2002016901A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003085370A1 (en) * 2002-04-09 2003-10-16 Telecom Italia S.P.A. Apparatus and method for measuring chromatic dispersion by variable wavelength
EP1367376A1 (en) * 2003-02-21 2003-12-03 Agilent Technologies Inc Method and apparatus for measuring chromatic dispersion
WO2004090499A1 (en) * 2003-04-10 2004-10-21 Luciol Instruments Sa High resolution otdr for loss measurements
EP2562528B1 (en) * 2005-09-22 2014-03-19 Nippon Telegraph and Telephone Corporation Method, apparatus, and program for measuring wavelength dispersion of optical waveguide

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4551019A (en) * 1983-06-06 1985-11-05 Northern Telecom Limited Measuring chromatic dispersion of fibers
US4752125A (en) * 1986-12-19 1988-06-21 Siecor Corporation Apparatus to measure fiber dispersion
EP0280329A2 (en) * 1987-02-27 1988-08-31 Anritsu Corporation Chromatic dispersion measuring system for optical fibers
US5189483A (en) * 1989-02-28 1993-02-23 Fujitsu Limited Apparatus for measurement of chromatic dispersion in a single mode optical fiber
US5619320A (en) * 1995-10-31 1997-04-08 Lucent Technologies Inc. Method and apparatus for measuring dispersion zero along an optical fiber
US5798853A (en) * 1992-10-16 1998-08-25 Fujitsu, Limited Optical communication system compensating for chromatic dispersion and phase conjugate light generator for use therewith
JPH10307077A (en) * 1997-05-08 1998-11-17 Anritsu Corp Apparatus for measuring wavelength dispersion of optical component by using delaying device
JP2000081374A (en) * 1998-09-04 2000-03-21 Hiromasa Ito Method and device for measuring wavelength dispersion
JP2000193558A (en) * 1998-12-28 2000-07-14 Nec Corp Wavelength dispersion measuring device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4551019A (en) * 1983-06-06 1985-11-05 Northern Telecom Limited Measuring chromatic dispersion of fibers
US4752125A (en) * 1986-12-19 1988-06-21 Siecor Corporation Apparatus to measure fiber dispersion
EP0280329A2 (en) * 1987-02-27 1988-08-31 Anritsu Corporation Chromatic dispersion measuring system for optical fibers
US5189483A (en) * 1989-02-28 1993-02-23 Fujitsu Limited Apparatus for measurement of chromatic dispersion in a single mode optical fiber
US5798853A (en) * 1992-10-16 1998-08-25 Fujitsu, Limited Optical communication system compensating for chromatic dispersion and phase conjugate light generator for use therewith
US5619320A (en) * 1995-10-31 1997-04-08 Lucent Technologies Inc. Method and apparatus for measuring dispersion zero along an optical fiber
JPH10307077A (en) * 1997-05-08 1998-11-17 Anritsu Corp Apparatus for measuring wavelength dispersion of optical component by using delaying device
JP2000081374A (en) * 1998-09-04 2000-03-21 Hiromasa Ito Method and device for measuring wavelength dispersion
JP2000193558A (en) * 1998-12-28 2000-07-14 Nec Corp Wavelength dispersion measuring device

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 02 26 February 1999 (1999-02-26) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 06 22 September 2000 (2000-09-22) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 10 17 November 2000 (2000-11-17) *

Also Published As

Publication number Publication date
AU2001276642A1 (en) 2002-03-04
WO2002016901A2 (en) 2002-02-28

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