KR100330808B1 - 파장 분할 다중화 시스템에서 채널신호 국간 전송 유니트 - Google Patents
파장 분할 다중화 시스템에서 채널신호 국간 전송 유니트 Download PDFInfo
- Publication number
- KR100330808B1 KR100330808B1 KR1019980060760A KR19980060760A KR100330808B1 KR 100330808 B1 KR100330808 B1 KR 100330808B1 KR 1019980060760 A KR1019980060760 A KR 1019980060760A KR 19980060760 A KR19980060760 A KR 19980060760A KR 100330808 B1 KR100330808 B1 KR 100330808B1
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- Prior art keywords
- wavelength division
- optical
- signal
- data
- stations
- Prior art date
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 67
- 230000003287 optical effect Effects 0.000 claims abstract description 65
- 238000000034 method Methods 0.000 claims description 5
- 239000000284 extract Substances 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 239000013307 optical fiber Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/0209—Multi-stage arrangements, e.g. by cascading multiplexers or demultiplexers
-
- 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
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/67—Optical arrangements in the receiver
- H04B10/671—Optical arrangements in the receiver for controlling the input optical signal
- H04B10/672—Optical arrangements in the receiver for controlling the input optical signal for controlling the power of the input optical signal
- H04B10/673—Optical arrangements in the receiver for controlling the input optical signal for controlling the power of the input optical signal using an optical preamplifier
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2210/00—Indexing scheme relating to optical transmission systems
- H04B2210/07—Monitoring an optical transmission system using a supervisory signal
- H04B2210/072—Monitoring an optical transmission system using a supervisory signal using an overhead signal
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optical Communication System (AREA)
Abstract
Description
Claims (2)
- 파장 분할 다중화 광 전송로를 통해 수신된 파장 분할 다중화 광신호를 역다중화하여 채널별로 광신호를 분리하고 분리된 채널신호들을 각각 정해진 하위 시스템으로 전송하는 파장 분할 역다중화기를 구비한 파장 분할 다중화 시스템에 있어서,상기 파장 분할 역다중화기에 의해 분리된 채널신호들중 국간 전송이 필요한 하위 시스템으로 전송할 하나의 채널신호를 입력하여 전기신호로 변환한후 데이터및 클럭을 추출하는 광수신기 모듈과,상기 광수신기 모듈과 상기 국간 전송이 필요한 하위 시스템과 연결되는 국간 광 전송로에 접속되며 상기 추출된 데이터를 광신호로 변환하여 상기 국간 전송이 필요한 하위 시스템으로 전송하는 광송신기 모듈과,상기 추출된 데이터와 클럭을 입력하여 저속의 데이터들로 역다중화하는 역다중화기와,상기 역다중화된 데이터들을 입력하여 에러 검출을 하는 구간 오버헤드 프로세서를 구비함을 특징으로 하는 국간 전송 유니트.
- 제1항에 있어서, 상기 광수신기 모듈이,상기 입력 채널신호를 광검출하여 전기신호로 변환하는 광검출소자와,상기 광검출소자에 의해 변환된 전기신호를 리미팅 증폭하는 리미팅 증폭기와,상기 리미팅 증폭기의 출력신호로부터 상기 데이터 및 클럭을 추출하는 클럭 및 데이터 복원기를 구비함을 특징으로 하는 국간 전송 유니트.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980060760A KR100330808B1 (ko) | 1998-12-30 | 1998-12-30 | 파장 분할 다중화 시스템에서 채널신호 국간 전송 유니트 |
CN99126748A CN1126310C (zh) | 1998-12-30 | 1999-12-10 | 波分复用系统中的局间信道信号传输单元 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980060760A KR100330808B1 (ko) | 1998-12-30 | 1998-12-30 | 파장 분할 다중화 시스템에서 채널신호 국간 전송 유니트 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20000044269A KR20000044269A (ko) | 2000-07-15 |
KR100330808B1 true KR100330808B1 (ko) | 2002-08-21 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019980060760A KR100330808B1 (ko) | 1998-12-30 | 1998-12-30 | 파장 분할 다중화 시스템에서 채널신호 국간 전송 유니트 |
Country Status (2)
Country | Link |
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KR (1) | KR100330808B1 (ko) |
CN (1) | CN1126310C (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100445910B1 (ko) * | 2001-12-27 | 2004-08-25 | 한국전자통신연구원 | 광신호 세기의 변동에 관계없이 최적의 수신 성능을 갖는광신호 수신장치 및 그 방법 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100216931B1 (ko) * | 1995-12-29 | 1999-09-01 | 루센트 테크놀러지스 인크 | 광통신 시스템 및 원격 감지기 질문 방법 |
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1998
- 1998-12-30 KR KR1019980060760A patent/KR100330808B1/ko not_active IP Right Cessation
-
1999
- 1999-12-10 CN CN99126748A patent/CN1126310C/zh not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100216931B1 (ko) * | 1995-12-29 | 1999-09-01 | 루센트 테크놀러지스 인크 | 광통신 시스템 및 원격 감지기 질문 방법 |
Also Published As
Publication number | Publication date |
---|---|
KR20000044269A (ko) | 2000-07-15 |
CN1126310C (zh) | 2003-10-29 |
CN1258970A (zh) | 2000-07-05 |
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