CA2261257A1 - Optical amplifier for constantly adjusting per-channel output power and method thereof - Google Patents

Optical amplifier for constantly adjusting per-channel output power and method thereof Download PDF

Info

Publication number
CA2261257A1
CA2261257A1 CA002261257A CA2261257A CA2261257A1 CA 2261257 A1 CA2261257 A1 CA 2261257A1 CA 002261257 A CA002261257 A CA 002261257A CA 2261257 A CA2261257 A CA 2261257A CA 2261257 A1 CA2261257 A1 CA 2261257A1
Authority
CA
Canada
Prior art keywords
channel
optical signal
channels
output power
unit
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.)
Abandoned
Application number
CA002261257A
Other languages
English (en)
French (fr)
Inventor
Do-In Choi
Jeong-Mee Kim
Sung-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 CA2261257A1 publication Critical patent/CA2261257A1/en
Abandoned 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)
CA002261257A 1998-02-06 1999-02-08 Optical amplifier for constantly adjusting per-channel output power and method thereof Abandoned CA2261257A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR98-3502 1998-02-06
KR1019980003502A KR19990069330A (ko) 1998-02-06 1998-02-06 채널당 출력파워가 일정한 광증폭기 및 이를위한 방법

Publications (1)

Publication Number Publication Date
CA2261257A1 true CA2261257A1 (en) 1999-08-06

Family

ID=19532657

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002261257A Abandoned CA2261257A1 (en) 1998-02-06 1999-02-08 Optical amplifier for constantly adjusting per-channel output power and method thereof

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
AUPQ511700A0 (en) * 2000-01-17 2000-02-10 University Of Sydney, The Method and apparatus for monitoring of data channels
AU781588B2 (en) * 2000-01-17 2005-06-02 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
US6483631B1 (en) 2001-06-05 2002-11-19 Onetta, Inc. Optical amplifier spectral tilt controllers
US6545800B1 (en) 2001-06-05 2003-04-08 Onetta, Inc. Depolarizers for optical channel monitors
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
ATE544252T1 (de) * 2009-06-02 2012-02-15 Alcatel Lucent Verfahren und gerät zur einstellung der leistungsverstärkung
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

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2714982B1 (fr) * 1994-01-13 1996-02-02 Alcatel Nv Amplificateur optique régulé.
JP3379052B2 (ja) * 1994-09-26 2003-02-17 富士通株式会社 波長多重光増幅装置及び光波長多重伝送システム及び光波長多重伝送方法
US6025947A (en) * 1996-05-02 2000-02-15 Fujitsu Limited Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied
JPH09321701A (ja) * 1996-05-31 1997-12-12 Fujitsu Ltd 光通信システム及び光増幅器

Also Published As

Publication number Publication date
CN1241728A (zh) 2000-01-19
GB2334397B (en) 2000-11-15
GB2334397A (en) 1999-08-18
GB9902566D0 (en) 1999-03-24
KR19990069330A (ko) 1999-09-06
FR2777142A1 (fr) 1999-10-01
CN1131458C (zh) 2003-12-17
JPH11275027A (ja) 1999-10-08

Similar Documents

Publication Publication Date Title
EP0812078B1 (en) Optical communication system and optical amplifier
CA2154641C (en) Amplified telecommunication system for wavelength-division multiplexing transmissions, having an equalized reception power
EP1603257B1 (en) Optical transmission device and optical communication system
US7038841B2 (en) Fiber amplifier and control method thereof
CA2261257A1 (en) Optical amplifier for constantly adjusting per-channel output power and method thereof
JP3068500B2 (ja) 光信号増幅伝送方式
US6373625B1 (en) Method, apparatus, and system for optical amplification
EP1427075B1 (en) Raman amplifier and optical relay transmission system
KR100277352B1 (ko) 다채널3단광섬유증폭기
US6147796A (en) Method for determining transmission parameters for the data channels of a WDM optical communication system
US20210057869A1 (en) Optical amplifier and optical amplification method
US20230412297A1 (en) Optical amplifier, optical amplifier controlling method, and optical transmission system
CA2235915A1 (en) Optical signal amplification control system
US6747791B1 (en) Optical amplifier with a spectral gain monitor using a volume phase grating
US20220052502A1 (en) Bismuth doped fiber amplifier
US6353496B1 (en) Wavelength division multiplexing erbium doped fiber amplifier which outputs constant power per channel and amplifying method thereof
US6603896B1 (en) Power fiber amplifier with flat gain
US6483634B1 (en) Optical amplifier
US7068422B2 (en) Optical fiber amplification method and apparatus for controlling gain
EP1237238A2 (en) Gain-clamped optical fibre amplifier
JP2003179290A (ja) 光増幅器および光通信システム
JP3917605B2 (ja) 光通信システム及び光増幅器
JP2003124891A (ja) 光増幅装置

Legal Events

Date Code Title Description
EEER Examination request
FZDE Dead