FR2777142A1 - Amplificateur optique pour ajuster de maniere constante la puissance de sortie par canal et procede pour celui-ci - Google Patents

Amplificateur optique pour ajuster de maniere constante la puissance de sortie par canal et procede pour celui-ci Download PDF

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Publication number
FR2777142A1
FR2777142A1 FR9901439A FR9901439A FR2777142A1 FR 2777142 A1 FR2777142 A1 FR 2777142A1 FR 9901439 A FR9901439 A FR 9901439A FR 9901439 A FR9901439 A FR 9901439A FR 2777142 A1 FR2777142 A1 FR 2777142A1
Authority
FR
France
Prior art keywords
channel
optical
signal
unit
channels
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.)
Pending
Application number
FR9901439A
Other languages
English (en)
French (fr)
Inventor
Jeong Mee Kim
Do Ri Choi
Sun Jun Kim
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of FR2777142A1 publication Critical patent/FR2777142A1/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/293—Signal power control
    • H04B10/294—Signal power control in a multiwavelength system, e.g. gain equalisation
    • H04B10/296—Transient power control, e.g. due to channel add/drop or rapid fluctuations in the input power
    • 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
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
    • H01S3/0064—Anti-reflection devices, e.g. optical isolaters
    • 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
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
    • H01S3/1301—Stabilisation of laser output parameters, e.g. frequency or amplitude in optical amplifiers
    • H01S3/13013—Stabilisation of laser output parameters, e.g. frequency or amplitude in optical amplifiers by controlling the optical pumping
    • 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
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/16—Solid materials
    • H01S3/1601—Solid materials characterised by an active (lasing) ion
    • H01S3/1603—Solid materials characterised by an active (lasing) ion rare earth
    • H01S3/1608—Solid materials characterised by an active (lasing) ion rare earth erbium
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/2912—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/293—Signal power control
    • H04B10/294—Signal power control in a multiwavelength system, e.g. gain equalisation
    • H04B10/2942—Signal power control in a multiwavelength system, e.g. gain equalisation using automatic gain control [AGC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0221—Power control, e.g. to keep the total optical power constant
    • 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
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H01S3/06754—Fibre amplifiers
    • 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
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/09—Processes or apparatus for excitation, e.g. pumping
    • H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
    • H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
    • H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
    • H01S3/094011—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre with bidirectional pumping, i.e. with injection of the pump light from both two ends of the fibre
    • 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
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
    • H01S3/10015—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by monitoring or controlling, e.g. attenuating, the input signal

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
  • Lasers (AREA)
FR9901439A 1998-02-06 1999-02-08 Amplificateur optique pour ajuster de maniere constante la puissance de sortie par canal et procede pour celui-ci Pending FR2777142A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019980003502A KR19990069330A (ko) 1998-02-06 1998-02-06 채널당 출력파워가 일정한 광증폭기 및 이를위한 방법

Publications (1)

Publication Number Publication Date
FR2777142A1 true FR2777142A1 (fr) 1999-10-01

Family

ID=19532657

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9901439A Pending FR2777142A1 (fr) 1998-02-06 1999-02-08 Amplificateur optique pour ajuster de maniere constante la puissance de sortie par canal et procede pour celui-ci

Country Status (6)

Country Link
JP (1) JPH11275027A (ja)
KR (1) KR19990069330A (ja)
CN (1) CN1131458C (ja)
CA (1) CA2261257A1 (ja)
FR (1) FR2777142A1 (ja)
GB (1) GB2334397B (ja)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6307670B1 (en) * 1999-12-14 2001-10-23 Corning Incorporated Pump power control for optical fiber amplifier
AU781588B2 (en) * 2000-01-17 2005-06-02 University Of Sydney, The Method and apparatus for monitoring of data channels
AUPQ511700A0 (en) * 2000-01-17 2000-02-10 University Of Sydney, The Method and apparatus for monitoring of data channels
KR100346221B1 (ko) * 2000-09-06 2002-08-01 삼성전자 주식회사 어븀첨가 광섬유 증폭기의 이득 제어 장치 및 방법
US6498677B1 (en) 2000-10-23 2002-12-24 Onetta, Inc. Optical amplifier systems with transient control
US6504989B1 (en) 2000-10-23 2003-01-07 Onetta, Inc. Optical equipment and methods for manufacturing optical communications equipment for networks
US6438010B1 (en) 2001-03-02 2002-08-20 Onetta, Inc. Drive circuits for microelectromechanical systems devices
US6731424B1 (en) 2001-03-15 2004-05-04 Onetta, Inc. Dynamic gain flattening in an optical communication system
US6529316B1 (en) 2001-05-03 2003-03-04 Onetta, Inc. Optical network equipment with optical channel monitor and dynamic spectral filter alarms
US6545800B1 (en) 2001-06-05 2003-04-08 Onetta, Inc. Depolarizers for optical channel monitors
US6483631B1 (en) 2001-06-05 2002-11-19 Onetta, Inc. Optical amplifier spectral tilt controllers
GB0129717D0 (en) 2001-12-12 2002-01-30 Marconi Comm Ltd A method and an apparatus for signal transmission
JP4198082B2 (ja) * 2004-03-24 2008-12-17 富士通株式会社 光増幅器の利得モニタ方法および装置
EP2259455B1 (en) * 2009-06-02 2012-02-01 Alcatel Lucent Method and equipment for adjusting power amplification
CN103647539B (zh) * 2013-11-08 2017-01-11 上海华力微电子有限公司 开关装置及具有该开关装置的多通道耦合选择器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5497264A (en) * 1994-01-13 1996-03-05 Alcatel N.V. Regulated optical amplifier
GB2294170A (en) * 1994-09-26 1996-04-17 Fujitsu Ltd Optical amplification of wavelength-division-multiplexed signals
EP0805571A2 (en) * 1996-05-02 1997-11-05 Fujitsu Limited Controller which controls a variable optical attentuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied
EP0812078A2 (en) * 1996-05-31 1997-12-10 Fujitsu Limited Optical communication system and optical amplifier

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5497264A (en) * 1994-01-13 1996-03-05 Alcatel N.V. Regulated optical amplifier
GB2294170A (en) * 1994-09-26 1996-04-17 Fujitsu Ltd Optical amplification of wavelength-division-multiplexed signals
EP0805571A2 (en) * 1996-05-02 1997-11-05 Fujitsu Limited Controller which controls a variable optical attentuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied
EP0812078A2 (en) * 1996-05-31 1997-12-10 Fujitsu Limited Optical communication system and optical amplifier

Also Published As

Publication number Publication date
CN1131458C (zh) 2003-12-17
CA2261257A1 (en) 1999-08-06
CN1241728A (zh) 2000-01-19
KR19990069330A (ko) 1999-09-06
GB2334397A (en) 1999-08-18
GB9902566D0 (en) 1999-03-24
GB2334397B (en) 2000-11-15
JPH11275027A (ja) 1999-10-08

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