CA2218980A1 - Time division demultiplexing using selective raman amplification - Google Patents

Time division demultiplexing using selective raman amplification

Info

Publication number
CA2218980A1
CA2218980A1 CA002218980A CA2218980A CA2218980A1 CA 2218980 A1 CA2218980 A1 CA 2218980A1 CA 002218980 A CA002218980 A CA 002218980A CA 2218980 A CA2218980 A CA 2218980A CA 2218980 A1 CA2218980 A1 CA 2218980A1
Authority
CA
Canada
Prior art keywords
optical
pulses
optical signal
time division
multiplexed
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002218980A
Other languages
French (fr)
Other versions
CA2218980C (en
Inventor
Rogers Hall Stolen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
AT&T Corp
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 AT&T Corp filed Critical AT&T Corp
Publication of CA2218980A1 publication Critical patent/CA2218980A1/en
Application granted granted Critical
Publication of CA2218980C publication Critical patent/CA2218980C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/08—Time-division multiplex systems

Abstract

An optical transmission system utilizing a nonlinear fiber demultiplexer. A timedivision multiplexed optical signal is transmitted via a first optical signal path. An optical pump pulse is transmitted via a second optical signal path. The optical pump pulses are synchronized to correspond to the pulses in the multiplexed optical signal for which extraction is desired. The first and second optical signal paths are coupled such that the portions of the multiplexed signals which are synchronized with the optical pump pulses are amplified through Raman gain. The resulting signal is detected and passed through a threshold detector which filters out pulses below an intensity threshold. The desired demultiplexed signal, which was amplified by the pump pulses, passes through the optical threshold detector as an electronic pulse.
CA002218980A 1996-11-13 1997-10-21 Time division demultiplexing using selective raman amplification Expired - Fee Related CA2218980C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US748,328 1996-11-13
US08/748,328 US5880866A (en) 1996-11-13 1996-11-13 Time division demultiplexing using selective Raman amplification

Publications (2)

Publication Number Publication Date
CA2218980A1 true CA2218980A1 (en) 1998-05-13
CA2218980C CA2218980C (en) 2001-12-18

Family

ID=25009000

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002218980A Expired - Fee Related CA2218980C (en) 1996-11-13 1997-10-21 Time division demultiplexing using selective raman amplification

Country Status (3)

Country Link
US (1) US5880866A (en)
EP (1) EP0843435A3 (en)
CA (1) CA2218980C (en)

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US6052393A (en) * 1996-12-23 2000-04-18 The Regents Of The University Of Michigan Broadband Sagnac Raman amplifiers and cascade lasers
US6374006B1 (en) 1998-03-20 2002-04-16 Xtera Communications, Inc. Chirped period gratings for raman amplification in circulator loop cavities
US6356384B1 (en) 1998-03-24 2002-03-12 Xtera Communications Inc. Broadband amplifier and communication system
US6600592B2 (en) 1998-03-24 2003-07-29 Xtera Communications, Inc. S+ band nonlinear polarization amplifiers
US6760148B2 (en) 1998-03-24 2004-07-06 Xtera Communications, Inc. Nonlinear polarization amplifiers in nonzero dispersion shifted fiber
US6631025B2 (en) 2000-01-12 2003-10-07 Xtera Communications, Inc. Low-noise distributed Raman amplifier using bi-directional pumping using multiple Raman orders
US6574037B2 (en) 1998-06-16 2003-06-03 Xtera Communications, Inc. All band amplifier
EP1088375B1 (en) 1998-06-16 2010-11-10 Xtera Communications, Inc. Dispersion compensating and amplifying optical element
US6335820B1 (en) 1999-12-23 2002-01-01 Xtera Communications, Inc. Multi-stage optical amplifier and broadband communication system
US6359725B1 (en) 1998-06-16 2002-03-19 Xtera Communications, Inc. Multi-stage optical amplifier and broadband communication system
US6839522B2 (en) 1998-07-21 2005-01-04 Corvis Corporation Optical signal varying devices, systems and methods
US6344922B1 (en) 1998-07-21 2002-02-05 Corvis Corporation Optical signal varying devices
US6236487B1 (en) * 1998-07-21 2001-05-22 Corvis Corporation Optical communication control system
US6567430B1 (en) 1998-09-21 2003-05-20 Xtera Communications, Inc. Raman oscillator including an intracavity filter and amplifiers utilizing same
IT1303598B1 (en) * 1998-12-10 2000-11-14 Cselt Centro Studi Lab Telecom PROCEDURE AND DEVICE FOR OPTICAL DEMULTIPLATION INDEPENDENT OF POLARIZATION.
US6356383B1 (en) 1999-04-02 2002-03-12 Corvis Corporation Optical transmission systems including optical amplifiers apparatuses and methods
US6587261B1 (en) * 1999-05-24 2003-07-01 Corvis Corporation Optical transmission systems including optical amplifiers and methods of use therein
JP2001077754A (en) * 1999-09-01 2001-03-23 Fujitsu Ltd Optical demultiplexing device and optical demultiplexing and multiplexing device
FR2800219B1 (en) * 1999-10-22 2006-06-30 Algety Telecom POWER ADJUSTMENT METHOD FOR WAVELENGTH MULTIPLEXING OPTICAL TRANSMISSION SYSTEM
FR2800218B1 (en) * 1999-10-22 2002-01-11 Algety Telecom FIBER OPTIC TRANSMISSION SYSTEM USING RZ PULSES
US6760509B2 (en) 2000-02-14 2004-07-06 The Regents Of The University Of Michigan SNR booster for WDM systems
US6344925B1 (en) 2000-03-03 2002-02-05 Corvis Corporation Optical systems and methods and optical amplifiers for use therein
US6611368B1 (en) 2000-04-20 2003-08-26 Lucent Technologies Inc. Time-division multiplexed pump wavelengths resulting in ultra broad band, flat, backward pumped Raman gain
US6587259B2 (en) 2001-07-27 2003-07-01 Xtera Communications, Inc. System and method for controlling noise figure
JP2003115799A (en) * 2001-10-03 2003-04-18 Fujitsu Ltd Optical transmitter and stimulation control method
US7136557B2 (en) * 2002-08-22 2006-11-14 Main Street Ventures, Llc All optical chopping for shaping and reshaping apparatus and method
DE10214927B4 (en) * 2002-04-04 2004-02-26 Siemens Ag Method for dividing an optical data signal into n electrical data signals with a lower bit rate
DE60202601T2 (en) * 2002-07-11 2005-06-16 Alcatel Demultiplexer for optical time division multiplexed signals
US20040042061A1 (en) * 2002-08-30 2004-03-04 Islam Mohammed N. Controlling ASE in optical amplification stages implementing time modulated pump signals
US6967767B2 (en) * 2003-03-18 2005-11-22 Fitel Usa Corp Swept wavelength broadband Raman pump source
GB2430094A (en) * 2004-07-06 2007-03-14 Shell Int Research Light pulse amplification in long optical fibers
EP1788426B1 (en) * 2004-08-30 2012-12-12 Mitsubishi Electric Corporation Optical communication system with raman amplifier
JP3920297B2 (en) * 2004-09-01 2007-05-30 富士通株式会社 Optical switch and optical waveform monitoring device using optical switch
US20060045445A1 (en) * 2004-09-01 2006-03-02 Fujitsu Limited Optical switch and optical waveform monitoring device utilizing optical switch
JP4574629B2 (en) * 2004-09-01 2010-11-04 富士通株式会社 Optical switch and optical waveform monitoring device using optical switch
CN100353254C (en) * 2004-09-01 2007-12-05 富士通株式会社 Optical switch and optical waveform monitoring device utilizing optical switch
JP2016025393A (en) * 2014-07-16 2016-02-08 富士通株式会社 Optical transmission device and optical transmission method

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US3705992A (en) * 1971-12-13 1972-12-12 Bell Telephone Labor Inc Broadband tunable raman-effect devices in optical fibers
US4427895A (en) * 1981-06-12 1984-01-24 Eng Sverre T Method and apparatus for optical fiber communication operating at gigabits per second
GB8612956D0 (en) * 1986-05-28 1986-07-02 British Telecomm Optical signal regenerator
US5165077A (en) * 1989-02-28 1992-11-17 Fujitsu Limited Optical drop-and-insert apparatus
JP2804954B2 (en) * 1992-08-13 1998-09-30 日本電信電話株式会社 Polarization-independent optical pulse separation circuit and polarization-independent optical pulse multiplexing circuit
EP0697775B1 (en) * 1994-08-15 2005-08-10 Nippon Telegraph And Telephone Corporation Multiple-channel all-optical TDM-WDM converter and multiple-channel all-optical TDM demultiplexer

Also Published As

Publication number Publication date
EP0843435A2 (en) 1998-05-20
CA2218980C (en) 2001-12-18
US5880866A (en) 1999-03-09
EP0843435A3 (en) 2000-12-13

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