WO2002082595A3 - Optical amplifier circuit - Google Patents

Optical amplifier circuit Download PDF

Info

Publication number
WO2002082595A3
WO2002082595A3 PCT/GB2002/001554 GB0201554W WO02082595A3 WO 2002082595 A3 WO2002082595 A3 WO 2002082595A3 GB 0201554 W GB0201554 W GB 0201554W WO 02082595 A3 WO02082595 A3 WO 02082595A3
Authority
WO
WIPO (PCT)
Prior art keywords
optical input
soa
optical
power
signal
Prior art date
Application number
PCT/GB2002/001554
Other languages
French (fr)
Other versions
WO2002082595A2 (en
Inventor
Adrian Wonfor
Ian White
Richard Vincent Penty
Original Assignee
Univ Bristol
Adrian Wonfor
Ian White
Richard Vincent Penty
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 Univ Bristol, Adrian Wonfor, Ian White, Richard Vincent Penty filed Critical Univ Bristol
Priority to AU2002242884A priority Critical patent/AU2002242884A1/en
Publication of WO2002082595A2 publication Critical patent/WO2002082595A2/en
Publication of WO2002082595A3 publication Critical patent/WO2002082595A3/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/068—Stabilisation of laser output parameters
    • H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/50—Amplifier structures not provided for in groups H01S5/02 - H01S5/30

Abstract

A circuit for controlling optical output power of a component in a communication system comprising a semiconductor optical amplifier (SOA), an electronic signal detection and feedback control block, an electrical coupler and a current source block. An SOA electrode voltage (or current) acquires a high frequency spectral content representative of the data modulation of an optical input signal. This modulated electrode signal is monitored, and the electrical power of the modulated electrode signal, within a predetermined spectral range, is shown to be proportional to the optical output power of the SOA. The constant of proportionality is independent of average electrical pump current, optical input power and the state of polarisation of the optical input signal. The electronic signal detection and feedback control block and the current source block function to compensate for low optical input power and changes in the state of polarisation of the optical input signal.
PCT/GB2002/001554 2001-04-03 2002-04-03 Optical amplifier circuit WO2002082595A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002242884A AU2002242884A1 (en) 2001-04-03 2002-04-03 Optical amplifier circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0108325A GB0108325D0 (en) 2001-04-03 2001-04-03 Output power control of optical amplifier
GB0108325.2 2001-04-03

Publications (2)

Publication Number Publication Date
WO2002082595A2 WO2002082595A2 (en) 2002-10-17
WO2002082595A3 true WO2002082595A3 (en) 2004-02-19

Family

ID=9912154

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/001554 WO2002082595A2 (en) 2001-04-03 2002-04-03 Optical amplifier circuit

Country Status (3)

Country Link
AU (1) AU2002242884A1 (en)
GB (1) GB0108325D0 (en)
WO (1) WO2002082595A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0434466A2 (en) * 1989-12-21 1991-06-26 Kabushiki Kaisha Toshiba Stabilized-feedback control device for semiconductor lasers
EP0467396A2 (en) * 1990-07-20 1992-01-22 Canon Kabushiki Kaisha Wavelength-multiplexed optical communication system and optical amplifier used therefor
US5374973A (en) * 1993-09-21 1994-12-20 Alcatel Network Systems, Inc. Optical amplifier
JPH07154368A (en) * 1993-11-30 1995-06-16 Nec Corp Optical amplifier
EP1233488A1 (en) * 2001-02-16 2002-08-21 Agilent Technologies, Inc. (a Delaware corporation) A light source

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0434466A2 (en) * 1989-12-21 1991-06-26 Kabushiki Kaisha Toshiba Stabilized-feedback control device for semiconductor lasers
EP0467396A2 (en) * 1990-07-20 1992-01-22 Canon Kabushiki Kaisha Wavelength-multiplexed optical communication system and optical amplifier used therefor
US5374973A (en) * 1993-09-21 1994-12-20 Alcatel Network Systems, Inc. Optical amplifier
JPH07154368A (en) * 1993-11-30 1995-06-16 Nec Corp Optical amplifier
EP1233488A1 (en) * 2001-02-16 2002-08-21 Agilent Technologies, Inc. (a Delaware corporation) A light source

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
ELLIS A ET AL: "A NOVEL ALL ELECTRICAL SCHEME FOR LASER AMPLIFIER GAIN CONTROL", EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION. BRIGHTON, SEPT. 11 - 15, 1988, LONDON, IEE, GB, vol. PART 1 CONF. 14, 11 September 1988 (1988-09-11), pages 487 - 490, XP000145171 *
GUSTAVSSON M ET AL: "TRAVELING WAVE SEMICONDUCTOR LASER AMPLIFIER DETECTORS", JOURNAL OF LIGHTWAVE TECHNOLOGY, IEEE. NEW YORK, US, vol. 8, no. 4, 1 April 1990 (1990-04-01), pages 610 - 617, XP000126584, ISSN: 0733-8724 *
NEWKIRK M A ET AL: "THREE-SECTION SEMICONDUCTOR OPTICAL AMPLIFIER FOR MONITORING OF OPTICAL GAIN", IEEE PHOTONICS TECHNOLOGY LETTERS, IEEE INC. NEW YORK, US, vol. 4, no. 11, 1 November 1992 (1992-11-01), pages 1258 - 1260, XP000328574, ISSN: 1041-1135 *
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 09 31 October 1995 (1995-10-31) *
THYLEN L ET AL: "Quantum calculation of the performance of traveling wave semiconductor laser amplifiers for simultaneous amplification and detection", CONF. PROCEEDINGS ARTICLE, 9 December 1990 (1990-12-09), pages 141 - 144, XP010554675 *
YU-HENG JAN ET AL: "InP/InGaAsP photonic integrated broadly tunable receivers based on grating-assisted codirectional coupler optical filter", LASERS AND ELECTRO-OPTICS SOCIETY ANNUAL MEETING, 1996. LEOS 96., IEEE BOSTON, MA, USA 18-19 NOV. 1996, NEW YORK, NY, USA,IEEE, US, 18 November 1996 (1996-11-18), pages 157 - 158, XP010204889, ISBN: 0-7803-3160-5 *

Also Published As

Publication number Publication date
AU2002242884A1 (en) 2002-10-21
GB0108325D0 (en) 2001-05-23
WO2002082595A2 (en) 2002-10-17

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