KR970056069A - Long range optical transmission link using spectral inversion - Google Patents

Long range optical transmission link using spectral inversion Download PDF

Info

Publication number
KR970056069A
KR970056069A KR1019950055884A KR19950055884A KR970056069A KR 970056069 A KR970056069 A KR 970056069A KR 1019950055884 A KR1019950055884 A KR 1019950055884A KR 19950055884 A KR19950055884 A KR 19950055884A KR 970056069 A KR970056069 A KR 970056069A
Authority
KR
South Korea
Prior art keywords
optical
signal
output
spectral
amplifier
Prior art date
Application number
KR1019950055884A
Other languages
Korean (ko)
Other versions
KR0168911B1 (en
Inventor
이창희
이상수
Original Assignee
양승택
한국전자통신연구원
이준
한국전기통신공사
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 양승택, 한국전자통신연구원, 이준, 한국전기통신공사 filed Critical 양승택
Priority to KR1019950055884A priority Critical patent/KR0168911B1/en
Publication of KR970056069A publication Critical patent/KR970056069A/en
Application granted granted Critical
Publication of KR0168911B1 publication Critical patent/KR0168911B1/en

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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • H04B10/2513—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion
    • H04B10/2531—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion using spectral inversion
    • 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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • H04B10/2543—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to fibre non-linearities, e.g. Kerr effect
    • H04B10/2563—Four-wave mixing [FWM]

Abstract

본 발명은 입력되는 신호를 광신호로 변환하는 광송신 수단(11); 광신호를 전송하는 광선로(13); 상기 광송신 수단의 출력 신호의 처핑 방향을 반전시켜 상기 광선로에 공급하는 스펙트럼 반전 수단(12); 및 상기 광선로를 통한 광 신호를 수신하는 광수신 수단(14)을 구비하는 것을 특징으로 하는 스펙트럼 반전법을 이용한 장거리 광전송 링크에 관한 것으로, 광통신의 전송거리를 증대시킬 수 있어 장거리 광전송에 유리하도록 한 것이다.The invention provides an optical transmission means (11) for converting an input signal into an optical signal; An optical path 13 for transmitting an optical signal; Spectral inverting means (12) for inverting the chirping direction of the output signal of the optical transmitting means and supplying it to the optical path; And a light receiving means (14) for receiving an optical signal through the optical path. The invention relates to a long distance optical transmission link using a spectral reversal method. will be.

Description

스펙트럼 반전법을 이용한 장거리 광전송 링크Long range optical transmission link using spectral inversion

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 본 발명의 일실시예에 따른 스펙트럼 반전법을 이용한 장거리 광전송 링크의 구성도.3 is a block diagram of a long-distance optical transmission link using the spectral inversion method according to an embodiment of the present invention.

제4도는 제3도의 스펙트럼 반전기의 상세 구성도.4 is a detailed block diagram of the spectral inverter of FIG.

Claims (2)

입력되는 신호를 광신호로 변환하는 광송신 수단(11); 광 신호를 전송하는 광선로(13); 상기 광송신 수단의 출력 신호의 처핑 방향을 반전시켜 상기 광선로에 공급하는 스펙트럼 반전 수단(12); 및 상기 광선로를 통한 광 신호를 수신하는 광수신 수단(14)을 구비하는 것을 특징으로 하는 스펙트럼 반전법을 이용한 장거리광전송 링크.Optical transmission means (11) for converting an input signal into an optical signal; An optical path 13 for transmitting an optical signal; Spectral inverting means (12) for inverting the chirping direction of the output signal of the optical transmitting means and supplying it to the optical path; And optical receiving means (14) for receiving an optical signal through the optical path. 제1항에 있어서, 상기 스펙트럼 반전 수단(12)은 입력 신호광을 증폭하는 제1광증폭기(21); 상기 제1광증폭기의 출력에서 잡음 성분을 필터링하는 제1광학필터(22); 펌프 광원인 반도체 레이저(23); 상기 반도체 레이저의 출력 광을 증폭하는 제2광증폭기(24); 상기 제2광증폭기의 출력에서 잡음을 제거하는 제2광학필터(25); 상기 제1광학필터와 제2광학필터의 출력 광을 결합하는 커플러(26); 상기 커플러의 출력을 입력받는 분산 천이 광섬유(27); 상기 분산 천이 광섬유를 통한 스펙트럼 반전된 광을 증폭하는 제3광증폭기(28); 상기 제3광증폭기의 출력에서 스펙트럼 반전된 신호를 뽑아내는 제3광학필터(29)를 구비하는 것을 특징으로 하는 스펙트럼 반전법을 이용한 장거리 광전송 링크.2. The apparatus of claim 1, wherein the spectral inverting means (12) comprises: a first optical amplifier (21) for amplifying the input signal light; A first optical filter 22 for filtering a noise component at an output of the first optical amplifier; A semiconductor laser 23 that is a pump light source; A second optical amplifier 24 for amplifying the output light of the semiconductor laser; A second optical filter 25 for removing noise from an output of the second optical amplifier; A coupler 26 coupling the output light of the first optical filter and the second optical filter; A distributed transition optical fiber 27 receiving an output of the coupler; A third optical amplifier (28) for amplifying the spectral inverted light through the dispersion shift optical fiber; And a third optical filter (29) for extracting the spectral inverted signal from the output of the third optical amplifier. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950055884A 1995-12-23 1995-12-23 Long distance optical transmission link using spectrum conversion KR0168911B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950055884A KR0168911B1 (en) 1995-12-23 1995-12-23 Long distance optical transmission link using spectrum conversion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950055884A KR0168911B1 (en) 1995-12-23 1995-12-23 Long distance optical transmission link using spectrum conversion

Publications (2)

Publication Number Publication Date
KR970056069A true KR970056069A (en) 1997-07-31
KR0168911B1 KR0168911B1 (en) 1999-02-01

Family

ID=19444048

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950055884A KR0168911B1 (en) 1995-12-23 1995-12-23 Long distance optical transmission link using spectrum conversion

Country Status (1)

Country Link
KR (1) KR0168911B1 (en)

Also Published As

Publication number Publication date
KR0168911B1 (en) 1999-02-01

Similar Documents

Publication Publication Date Title
ES2089595T3 (en) DIGITAL OPTICAL TRANSMISSION SYSTEM WITH A WAVE GUIDE WITH DISPERSION AT WORK WAVE LENGTH.
KR890007517A (en) Lightwave system using optical amplifier
US4817207A (en) Optical communication system utilizing phase modulation
KR100272402B1 (en) Non-linear optical interferometer with saturated amplifier
EP1102114A4 (en) Raman amplification system and optical signal transmission method using the same
DE69930415D1 (en) OPTICAL SYSTEM AND METHOD WITH LOW LOSSES AND NONLINEAR EFFECTS
KR920000185A (en) Transmission device and light wave system
ATE176100T1 (en) WAVELENGTH CONVERTER
KR950019784A (en) Apparatus and method for use as an inverter
ES2127776T3 (en) RECEPTION CIRCUIT FOR AN OPTICAL TRANSMISSION SYSTEM OF A DIGITAL SIGNAL THROUGH A GUIDE OF LIGHT WAVES AFFECTED BY DISPERSION.
KR960027595A (en) Multiplexed Telecommunications System With Distributed Displacement Fiber Optics
KR910021062A (en) Long distance bidirectional fiber optic communication link
CA2183347A1 (en) Optical and gate
ATE179526T1 (en) OPTICAL COUPLER MODULE
KR970056069A (en) Long range optical transmission link using spectral inversion
US6904100B1 (en) Pulse controlled phase modulator
KR970031503A (en) Method and device for optically recovering the synchronism of an optical digital signal
RU97103856A (en) REVERSE LIGHT DISTRIBUTION DEVICE DEVICE AND METHOD FOR DETECTING TRANSMITTED LIGHT USING THIS DEVICE
JP2000031907A (en) Supervisory signal light bypass circuit, optical amplifying repeater using the same and its supervisory system
US6912338B2 (en) Optical signal noise reduction device and method of reducing optical signal noise
EP1122842A3 (en) Method for optical direct amplification, and optical amplification repeater and optical transmission system using the same
ES2093221T3 (en) PROCEDURE AND DEVICE FOR RELATIVE LOCATION OF A FREQUENCY, IN PARTICULAR OPTICAL.
JPH11271818A (en) Optical transmitting device and optical repeating device
JPH04191709A (en) Optical transmission method and its system
DK1473858T3 (en) Chromatic dispersion compensation module

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20031001

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee