KR960001788A - 다채널 광섬유증폭광원의 채널폭 조절장치 - Google Patents

다채널 광섬유증폭광원의 채널폭 조절장치 Download PDF

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Publication number
KR960001788A
KR960001788A KR1019940015000A KR19940015000A KR960001788A KR 960001788 A KR960001788 A KR 960001788A KR 1019940015000 A KR1019940015000 A KR 1019940015000A KR 19940015000 A KR19940015000 A KR 19940015000A KR 960001788 A KR960001788 A KR 960001788A
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South Korea
Prior art keywords
optical fiber
light
channel
erbium
optical
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KR1019940015000A
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English (en)
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KR0146648B1 (ko
Inventor
이재승
심창섭
Original Assignee
양승택
재단법인 한국전자통신연구원
조백제
한국전기통신공사
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Application filed by 양승택, 재단법인 한국전자통신연구원, 조백제, 한국전기통신공사 filed Critical 양승택
Priority to KR1019940015000A priority Critical patent/KR0146648B1/ko
Priority to US08/494,578 priority patent/US5566018A/en
Priority to GB9513058A priority patent/GB2290904B/en
Priority to JP7162589A priority patent/JP2633224B2/ja
Publication of KR960001788A publication Critical patent/KR960001788A/ko
Application granted granted Critical
Publication of KR0146648B1 publication Critical patent/KR0146648B1/ko

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    • 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
    • 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
    • H01S3/06795—Fibre lasers with superfluorescent emission, e.g. amplified spontaneous emission sources for fibre laser gyrometers
    • 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
    • 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
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2210/00—Indexing scheme relating to optical transmission systems
    • H04B2210/003—Devices including multiple stages, e.g., multi-stage optical amplifiers or dispersion compensators

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

본 발명은 다채널 광섬유증폭광원의 채널폭 조절장치에 관한 것으로, 특히 다채널 광섬유증폭광원의 채널폭 조절장치에 있어서, 여기광을 발생하는 여기광 발생부(60)와, 상기 여기광 발생부(60)에서 발생된 여기광을 두 경로로 나누어 주는 광결합기(70)와, 무입력으로 자기 방출(ASE)잡음광을 발생하는 제1에르븀광섬유(11)와, 상기 광섬유를 통해 진행하는 빛을 렌즈를 통해 단면폭을 확장하여 자유공간으로 전파시킨 뒤 다시 렌즈를 통하여 모으는 광섬유 빔확장기(40)와, 상기 광섬유 빔확장기(40)의 적정위치에 설치되어 자유공간을 통해 진행하는 자기방출(ASE) 스펙트럼을 필터링하여 파장분할다중화(WDM)용 광채널로 만드는 파브리-페로 필터(50)와, 파장분할다중화(WDM)통신에 맞도록 스펙트럼모양이 갖춰진 자기방출(ASE)을 증폭하는 제2에르븀광섬유(12) 및 상기 광결합기(70)와 제 1에르븀광섬유(11)로부터 공급되는 파장이 다른 신호광과 여기광을 동일한 에르븀광섬유내에서 서로 다른 방향으로 진행하도록 혼합해 주는 신호광/여기광 혼합기(21)를 구비하여, 광신호를 인가하지 않는 상태에서 증폭된 자기방출(ASE) 잡음광을 발생하는 에르븀광섬유증폭기를 파장분할다증화(WDM)용 광원 즉, 광섬유증폭광원으로 사용함으로써 채널간격 및 출력광의 세기(Power)에 영향을 주지 않으면서 채널폭을 손쉽게 제어할 수 있으며 또한, 이단계(two stage)광증폭광원구조를 사용하여 광학필터로 스펙트럼을 저밀 때 발생하는 여기광효율의 저하를 방지할 수 있다.

Description

다채널 광섬유증폭광원의 채널폭 조절장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 의한 광섬유증폭광원의 채널폭 조절장치의 구성도.

Claims (2)

  1. 다채널 광섬유증폭광원의 채널폭 조절장치에 있어서, 여기광을 발생하는 여기광 발생부(60); 상기 여기광 발생부(60)에서 발생된 여기광을 두 경로로 나누어 주는 광결합기(70); 무입력으로 자기 방출(ASE)잡음광을 발생하는 제1에르븀광섬유(11); 상기 광섬유를 통해 진행하는 빛을 렌즈를 통해 단면폭을 확장하여 자유공간으로 전파시킨 뒤 다시 렌즈를 통하여 모으는 광섬유 빔확장기(40); 상기 광섬유 빔확장기(40)의 적정위치에 설치되어 자유공간을 통해 진행하는 자기방출(ASE) 스펙트럼을 필터링하여 채널폭이 제어가능한 파장분할다중화(WDM)용 광채널로 만드는 파브리-페로 필터(50); 파장분할다중화(WDM)통신에 맞도록 스펙트럼모양이 갖춰진 자기방출(ASE)을 재차 증폭하여 여기광효율을 높이는 제2에르븀광섬유(12); 및 상기 광결합기(70)와 제1, 제2 에르븀광섬유(11)로부터 공급되는 파장이 다른 신호광과 여기광을 동일한 에르븀광섬유내에서 진행할 수 있도록 혼합해 주는 신호광/여기광 혼합기(21,22)를 구비하는 것을 특징으로 하는 다채널 광섬유증폭광원의 채널폭 조절장치.
  2. 제1항에 있어서, 상기 신호광/여기광 혼합기(21)와 광섬유 빔확장기(40)사이에, 광섬유 빔확장기(40)와 제 2에르븀광섬유(12)사이에, 제2에르븀광섬유(12)와 출력단 사이에 신호광을 한방향으로만 진행하도록 하는 광아이솔레이터(31,32,33)를 연결하여 이루어진 것을 특징으로 하는 다채널 광섬유증폭광원 채널폭 조절장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940015000A 1994-06-28 1994-06-28 다채널 광섬유증폭광원의 채널폭 조절장치 KR0146648B1 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1019940015000A KR0146648B1 (ko) 1994-06-28 1994-06-28 다채널 광섬유증폭광원의 채널폭 조절장치
US08/494,578 US5566018A (en) 1994-06-28 1995-06-26 Apparatus for adjusting channel width of multi-channel fiber amplifier light source
GB9513058A GB2290904B (en) 1994-06-28 1995-06-27 Apparatus for adjusting the channel width of a multi-channel fibre amplifier light source
JP7162589A JP2633224B2 (ja) 1994-06-28 1995-06-28 多チャンネル光ファイバ増幅光源のチャンネル幅調節装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940015000A KR0146648B1 (ko) 1994-06-28 1994-06-28 다채널 광섬유증폭광원의 채널폭 조절장치

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Publication Number Publication Date
KR960001788A true KR960001788A (ko) 1996-01-25
KR0146648B1 KR0146648B1 (ko) 1998-08-17

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US (1) US5566018A (ko)
JP (1) JP2633224B2 (ko)
KR (1) KR0146648B1 (ko)
GB (1) GB2290904B (ko)

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KR100328291B1 (ko) * 1998-07-14 2002-08-08 노베라 옵틱스 인코포레이티드 능동제어된파장별이득을갖는광증폭기및변화가능한출력스펙트럼을갖는광섬유광원
DE19926811A1 (de) * 1999-03-22 2000-09-28 Claude Stricker Lichtquelle für die optische Informationsübertragung
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DE10029336A1 (de) * 2000-03-20 2002-01-03 Sel Alcatel Ag Breitbandige optische Lichtquelle, Verwendung einer breitbandigen optischen Lichtquelle sowie Verfahren zum Demultiplexen
US6490389B1 (en) * 2000-04-06 2002-12-03 Nortel Networks Limited Fibre fuse protection
US6944406B1 (en) 2000-08-04 2005-09-13 Fujitsu Limited Transport system with tunable channel spacing DWDM
US8379297B2 (en) 2006-05-30 2013-02-19 Weatherford/Lamb, Inc. Wavelength swept light source and filter based on sweep function, and its method of operation
US20090290160A1 (en) * 2006-05-30 2009-11-26 Domino Taverner Wavelength sweep control
CN103067092A (zh) * 2012-12-28 2013-04-24 华为技术有限公司 多波长光源装置
US10419147B2 (en) * 2014-09-03 2019-09-17 Alcatel Lucent Optical line loading using variable bandwidth noise
US11309678B2 (en) * 2019-10-09 2022-04-19 Molex, Llc Spectrum and power tunable ASE light source

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Also Published As

Publication number Publication date
GB2290904B (en) 1998-02-04
US5566018A (en) 1996-10-15
GB9513058D0 (en) 1995-08-30
JPH0846271A (ja) 1996-02-16
JP2633224B2 (ja) 1997-07-23
GB2290904A (en) 1996-01-10
KR0146648B1 (ko) 1998-08-17

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