JP4320573B2 - 光受信方法、光受信装置及びこれを用いた光伝送システム - Google Patents
光受信方法、光受信装置及びこれを用いた光伝送システム Download PDFInfo
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- JP4320573B2 JP4320573B2 JP2003273818A JP2003273818A JP4320573B2 JP 4320573 B2 JP4320573 B2 JP 4320573B2 JP 2003273818 A JP2003273818 A JP 2003273818A JP 2003273818 A JP2003273818 A JP 2003273818A JP 4320573 B2 JP4320573 B2 JP 4320573B2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
-
- 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
- H04B10/25133—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion including a lumped electrical or optical dispersion compensator
-
- 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
-
- 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
-
- 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
- H04B10/69—Electrical arrangements in the receiver
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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)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Description
11 光位相変調器
12 波長分散モジュール
13 光増幅器
14 帯域通過フィルタ
15 光電変換器
16 クロック・データ再生回路
17 位相シフタ
18 増幅器
20 偏波制御装置
30 光伝送システム
32 光源
33 データ変調装置
34,38 分散補償器
35 波長多重装置
36 光ファイバ伝送路
37 波長分離装置
Claims (12)
- 光ファイバ伝送路を伝搬してきた光信号に位相変調信号に応じた周波数チャープを付加する位相変調手段と、
この位相変調手段で周波数チャープが付加された光信号に波長分散を付加することにより当該光信号をパルス圧縮する分散付加手段と、
この分散付加手段でパルス圧縮された光信号を電気信号に変換するとともに、前記電気信号に含まれるクロック信号を前記位相変調信号として前記位相変調手段へ出力する光電変換手段と、
を備えた光受信装置。 - 前記位相変調手段は、前記光信号のビットスロットの前半で位相が遅れ後半で位相が進むように当該光信号に周波数チャープを付加する、
請求項1記載の光受信装置。 - 前記位相変調手段に入力される光信号を直線偏波状態にする偏波制御装置を更に備えた、
請求項1記載の光受信装置。 - 前記光電変換手段は、前記クロック信号の位相を調整する位相シフタ及び前記クロック信号の振幅を調整する増幅器を有する、
請求項1記載の光受信装置。 - 前記光電変換手段は、前記分散付加手段でパルス圧縮された光信号を電気信号に変換する光電変換器を有する、
請求項1記載の光受信装置。 - 前記光電変換手段は、前記光電変換器に代えて1ビット遅延マッハツェンダ干渉計及びバランス型光受信器を有する、
請求項5記載の光受信装置。 - 前記分散付加手段と前記光電変換手段との間に、
前記分散付加手段でパルス圧縮された光信号を増幅する光増幅器と、この光増幅器で増幅された光信号から雑音を除去して前記光電変換手段へ出力するフィルタとを備えた、
請求項1乃至6のいずれかに記載の光受信装置。 - 異なる波長の複数の光信号を多重化する送信側と、多重化された光信号を各波長ごとに分離する受信側とが、光ファイバ伝送路を介して接続され、
前記受信側には、前記各波長ごとに分離された光信号に基づきそれぞれの電気信号を得る複数の請求項1乃至7のいずれかに記載の光受信装置が設けられた、
光伝送システム。 - 送信側と受信側とが光ファイバ伝送路を介して接続され、
前記送信側には、異なる波長の光を出力する複数の光源と、これらの光源から出力された光をそれぞれデータ変調して光信号として出力する複数のデータ変調装置と、これらのデータ変調装置から出力された波長の異なる複数の光信号を多重化して前記光ファイバ伝送路へ出力する波長多重装置とが設けられ、
前記受信側には、前記光ファイバ伝送路を伝搬してきた多重化された光信号をそれぞれの波長ごとに分離する波長分離装置と、この波長分離装置で分離された各光信号に基づきそれぞれの電気信号を得る複数の請求項1乃至7のいずれかに記載の光受信装置とが設けられた、
光伝送システム。 - 前記光信号はNRZ符号からなる、
請求項8又は9記載の光伝送システム。 - 光ファイバ伝送路を伝搬してきた光信号に位相変調信号に応じた周波数チャープを付加し、
この周波数チャープが付加された光信号に波長分散を付加することにより当該光信号をパルス圧縮し、
このパルス圧縮された光信号を電気信号に変換するとともに、当該電気信号に含まれるクロック信号を前記位相変調信号として用いる、
光受信方法。 - 前記光信号のビットスロットの前半で位相が遅れ後半で位相が進むように当該光信号に周波数チャープを付加する、
請求項11記載の光受信方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003273818A JP4320573B2 (ja) | 2003-07-14 | 2003-07-14 | 光受信方法、光受信装置及びこれを用いた光伝送システム |
US10/890,217 US20050013618A1 (en) | 2003-07-14 | 2004-07-14 | Optical receiving method, optical receiver and optical transmission system using the same |
EP04254221A EP1499044A3 (en) | 2003-07-14 | 2004-07-14 | Optical receiving method, optical receiver, and optical transmission system using the same |
Applications Claiming Priority (1)
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JP2003273818A JP4320573B2 (ja) | 2003-07-14 | 2003-07-14 | 光受信方法、光受信装置及びこれを用いた光伝送システム |
Publications (2)
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JP2005039493A JP2005039493A (ja) | 2005-02-10 |
JP4320573B2 true JP4320573B2 (ja) | 2009-08-26 |
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JP2003273818A Expired - Lifetime JP4320573B2 (ja) | 2003-07-14 | 2003-07-14 | 光受信方法、光受信装置及びこれを用いた光伝送システム |
Country Status (3)
Country | Link |
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US (1) | US20050013618A1 (ja) |
EP (1) | EP1499044A3 (ja) |
JP (1) | JP4320573B2 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4574187B2 (ja) * | 2004-02-20 | 2010-11-04 | 富士通株式会社 | 光同期装置 |
US7689133B2 (en) | 2005-02-28 | 2010-03-30 | Fujitsu Limited | Optical signal reception device and method of controlling optical signal reception |
JP4589836B2 (ja) * | 2005-02-28 | 2010-12-01 | 富士通株式会社 | 光信号受信装置 |
JP4727493B2 (ja) * | 2006-04-20 | 2011-07-20 | 富士通株式会社 | 光信号受信装置及び光信号受信制御方法 |
US7826752B1 (en) * | 2005-06-02 | 2010-11-02 | Level 3 Communications, Llc | Optical transmission apparatuses, methods, and systems |
US8401390B2 (en) | 2007-03-06 | 2013-03-19 | Nec Corporation | Optical connecting apparatus |
US8768168B2 (en) * | 2008-09-03 | 2014-07-01 | Nec Corporation | Optical signal transmission systems, transmitters, receivers, and optical signal transmission method |
US8385751B2 (en) * | 2009-12-10 | 2013-02-26 | Infinera Corporation | Optical transmitter adaptation to network topology |
JP5786333B2 (ja) * | 2011-01-05 | 2015-09-30 | 日本電気株式会社 | 電気光学変調器 |
JP6830790B2 (ja) | 2016-10-26 | 2021-02-17 | 技術研究組合光電子融合基盤技術研究所 | ネットワークシステム |
CN109644014B (zh) * | 2016-11-30 | 2020-06-16 | 华为技术有限公司 | 一种信号处理方法、装置及光纤传输*** |
CN112217564B (zh) * | 2019-07-09 | 2022-04-01 | 中国海洋大学 | 一种基于啁啾光纤光栅的脉冲位置调制激光通信方法 |
CN114430298B (zh) * | 2021-11-25 | 2024-01-30 | 中国科学院西安光学精密机械研究所 | 基于直接调制的多制式兼容空间激光通信方法及*** |
CN114142941A (zh) * | 2021-12-02 | 2022-03-04 | 广东工业大学 | 基于单端相干接收机的非线性频分复用***及其实现方法 |
CN115225246B (zh) * | 2022-07-11 | 2023-12-01 | 北京邮电大学 | 相位调制双向时间同步装置、方法和*** |
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US4928316A (en) * | 1988-02-04 | 1990-05-22 | Bell Communications Research, Inc. | Optical systems and methods based upon temporal stretching, modulation and recompression of ultrashort pulses |
JP2776124B2 (ja) * | 1992-03-23 | 1998-07-16 | 日本電気株式会社 | 直接検波光受信装置 |
JP3748652B2 (ja) * | 1997-02-27 | 2006-02-22 | 富士通株式会社 | インラインアンプを用いた光伝送システム |
US7203429B2 (en) * | 2001-05-07 | 2007-04-10 | Tyco Telecommunications (Us) Inc. | Optical transmission system using optical signal processing in terminals for improved system performance |
US20030194240A1 (en) * | 2002-04-10 | 2003-10-16 | Mollenauer Linn Frederick | Jitter compensation method and apparatus |
WO2004073184A2 (en) * | 2003-02-13 | 2004-08-26 | Corning Incorporated | Devices and methods for dynamic dispersion compensation |
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2003
- 2003-07-14 JP JP2003273818A patent/JP4320573B2/ja not_active Expired - Lifetime
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2004
- 2004-07-14 EP EP04254221A patent/EP1499044A3/en not_active Withdrawn
- 2004-07-14 US US10/890,217 patent/US20050013618A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
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EP1499044A3 (en) | 2005-10-12 |
US20050013618A1 (en) | 2005-01-20 |
EP1499044A2 (en) | 2005-01-19 |
JP2005039493A (ja) | 2005-02-10 |
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