ATE338392T1 - Verfahren zur bildung von einem kodierten rz oder nrz signal - Google Patents
Verfahren zur bildung von einem kodierten rz oder nrz signalInfo
- Publication number
- ATE338392T1 ATE338392T1 AT04291702T AT04291702T ATE338392T1 AT E338392 T1 ATE338392 T1 AT E338392T1 AT 04291702 T AT04291702 T AT 04291702T AT 04291702 T AT04291702 T AT 04291702T AT E338392 T1 ATE338392 T1 AT E338392T1
- Authority
- AT
- Austria
- Prior art keywords
- variations
- coded
- forming
- nrz signal
- phases
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
- H04L25/497—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems by correlative coding, e.g. partial response coding or echo modulation coding transmitters and receivers for partial response 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
- H04B10/25137—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion using pulse shaping at the transmitter, e.g. pre-chirping or dispersion supported transmission [DST]
-
- 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
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/505—Laser transmitters using external modulation
-
- 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
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/505—Laser transmitters using external modulation
- H04B10/5051—Laser transmitters using external modulation using a series, i.e. cascade, combination of modulators
-
- 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
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/505—Laser transmitters using external modulation
- H04B10/5055—Laser transmitters using external modulation using a pre-coder
-
- 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
- H04B10/50—Transmitters
- H04B10/508—Pulse generation, e.g. generation of solitons
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optical Communication System (AREA)
- Dc Digital Transmission (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0309997A FR2859056B1 (fr) | 2003-08-19 | 2003-08-19 | Methode de formation d'un signal optique code suivant un format retour a zero ou non retour a zero |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE338392T1 true ATE338392T1 (de) | 2006-09-15 |
Family
ID=34043779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT04291702T ATE338392T1 (de) | 2003-08-19 | 2004-07-05 | Verfahren zur bildung von einem kodierten rz oder nrz signal |
Country Status (5)
Country | Link |
---|---|
US (1) | US20050041983A1 (de) |
EP (1) | EP1508984B1 (de) |
AT (1) | ATE338392T1 (de) |
DE (1) | DE602004002160T2 (de) |
FR (1) | FR2859056B1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080130888A1 (en) * | 2004-09-10 | 2008-06-05 | Magio Technologies, Inc. A Coporation | Method And Apparatus For Generating Optical Pulses For Qkd |
US8055137B2 (en) * | 2007-03-27 | 2011-11-08 | Tongqing Wang | Phase coded non-return-to-zero optical transmitter |
JP5266316B2 (ja) * | 2007-06-07 | 2013-08-21 | エイエフエル テレコミュニケーションズ エルエルシー | 光ファイバファイバおよびリボンの検出方法 |
US11047766B2 (en) | 2018-04-11 | 2021-06-29 | Afl Telecommunications Llc | Systems and methods for identification and testing of optical fibers |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2670638B1 (fr) * | 1990-12-17 | 1993-02-12 | Alcatel Nv | Procede et systeme de transmission optique a saut de phase. |
FR2685834B1 (fr) * | 1991-12-31 | 1995-03-31 | France Telecom | Systeme de transmission numerique longue distance sur fibre optique a compensation a l'emission des distorsions. |
IT1279248B1 (it) * | 1995-12-21 | 1997-12-09 | Pirelli Cavi S P A Ora Pirelli | Sistema di trasmissione di segnali ottici modulati e depolarizzati |
FR2745451B1 (fr) * | 1996-02-23 | 1998-04-17 | Cit Alcatel | Procede de transmission optique de donnees numeriques |
US20040161245A1 (en) * | 1996-12-20 | 2004-08-19 | Bergano Neal S. | Synchronous amplitude modulation for improved performance of optical transmission systems |
JP3337980B2 (ja) * | 1998-06-29 | 2002-10-28 | 沖電気工業株式会社 | 光送信器及び光伝送システム |
FR2781322B1 (fr) * | 1998-07-20 | 2000-09-08 | Alsthom Cge Alcatel | Dispositif d'emission de donnees optiques |
EP1204228B1 (de) * | 2000-11-06 | 2005-05-18 | Alcatel | Optische Modulationsart für NRZ-Signale und optischer Sender |
US6741763B1 (en) * | 2001-01-17 | 2004-05-25 | The Texas A & M University | Optical data transmission apparatus and method |
CN1330119C (zh) * | 2001-11-11 | 2007-08-01 | 华为技术有限公司 | 一种用于高速传输系统的光信号调节方法及光传输系统 |
ITRM20020056A1 (it) * | 2002-02-04 | 2003-08-04 | Mario Zitelli | Modulazione combinata di intensita' e fase in un sistema di comunicazione ottico. |
JP2003244102A (ja) * | 2002-02-20 | 2003-08-29 | Hitachi Ltd | 光帯域狭窄化送信装置および光残留サイドバンド送信装置 |
US7027669B2 (en) * | 2003-08-15 | 2006-04-11 | Lucent Technologies Inc. | Methods and apparatus for optical pulse generator with progressive phase shift |
-
2003
- 2003-08-19 FR FR0309997A patent/FR2859056B1/fr not_active Expired - Fee Related
-
2004
- 2004-07-05 EP EP04291702A patent/EP1508984B1/de not_active Not-in-force
- 2004-07-05 AT AT04291702T patent/ATE338392T1/de not_active IP Right Cessation
- 2004-07-05 DE DE602004002160T patent/DE602004002160T2/de active Active
- 2004-07-14 US US10/890,120 patent/US20050041983A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP1508984B1 (de) | 2006-08-30 |
FR2859056A1 (fr) | 2005-02-25 |
US20050041983A1 (en) | 2005-02-24 |
DE602004002160D1 (de) | 2006-10-12 |
DE602004002160T2 (de) | 2007-07-19 |
EP1508984A1 (de) | 2005-02-23 |
FR2859056B1 (fr) | 2005-09-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |