DE69631817D1 - Sender für modulierte und depolarisierte optische Signale - Google Patents
Sender für modulierte und depolarisierte optische SignaleInfo
- Publication number
- DE69631817D1 DE69631817D1 DE69631817T DE69631817T DE69631817D1 DE 69631817 D1 DE69631817 D1 DE 69631817D1 DE 69631817 T DE69631817 T DE 69631817T DE 69631817 T DE69631817 T DE 69631817T DE 69631817 D1 DE69631817 D1 DE 69631817D1
- Authority
- DE
- Germany
- Prior art keywords
- modulated
- transmitter
- optical signals
- depolarized optical
- depolarized
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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
- H04B10/2537—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to scattering processes, e.g. Raman or Brillouin scattering
-
- 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
- H04B10/516—Details of coding or modulation
- H04B10/532—Polarisation modulation
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT95MI002722A IT1279248B1 (it) | 1995-12-21 | 1995-12-21 | Sistema di trasmissione di segnali ottici modulati e depolarizzati |
ITMI952722 | 1995-12-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69631817D1 true DE69631817D1 (de) | 2004-04-15 |
DE69631817T2 DE69631817T2 (de) | 2005-03-17 |
Family
ID=11372788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69631817T Expired - Lifetime DE69631817T2 (de) | 1995-12-21 | 1996-12-17 | Sender für modulierte und depolarisierte optische Signale |
Country Status (12)
Country | Link |
---|---|
US (1) | US5910852A (de) |
EP (1) | EP0781001B1 (de) |
JP (1) | JPH09200128A (de) |
KR (1) | KR970048630A (de) |
CN (1) | CN1159688A (de) |
AR (1) | AR005149A1 (de) |
AU (1) | AU709120B2 (de) |
BR (1) | BR9604740A (de) |
CA (1) | CA2192635A1 (de) |
DE (1) | DE69631817T2 (de) |
IT (1) | IT1279248B1 (de) |
NZ (1) | NZ299898A (de) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1093164A (ja) | 1996-09-17 | 1998-04-10 | Kokusai Denshin Denwa Co Ltd <Kdd> | 多波長光源及び離散波長可変光源 |
GB2318646A (en) * | 1996-10-25 | 1998-04-29 | Stc Submarine Systems Ltd | Optical polarisation scrambling |
US20040161245A1 (en) * | 1996-12-20 | 2004-08-19 | Bergano Neal S. | Synchronous amplitude modulation for improved performance of optical transmission systems |
US6556326B2 (en) * | 1996-12-20 | 2003-04-29 | Tyco Telecommunications (Us) Inc. | Synchronous amplitude modulation for improved performance of optical transmission systems |
JP3094950B2 (ja) * | 1997-05-28 | 2000-10-03 | 日本電気株式会社 | 光送信装置及び光送信方法 |
US6285477B1 (en) * | 1997-09-17 | 2001-09-04 | Kokusai Denshin Denwa Kabushiki Kaisha | Multi-wavelength light source and discrete-wavelength-variable light source |
US6282003B1 (en) * | 1998-02-02 | 2001-08-28 | Uniphase Corporation | Method and apparatus for optimizing SBS performance in an optical communication system using at least two phase modulation tones |
JP3567763B2 (ja) * | 1998-06-12 | 2004-09-22 | Kddi株式会社 | 光送信装置 |
US7447436B2 (en) * | 1999-12-29 | 2008-11-04 | Forster Energy Llc | Optical communications using multiplexed single sideband transmission and heterodyne detection |
US6785434B2 (en) * | 2000-01-17 | 2004-08-31 | Avanex Corporation | Attenuator integrated with modulator and transmitting module for WDM systems using the same |
US6760151B1 (en) | 2000-04-27 | 2004-07-06 | Jds Uniphase Corporation | Depolarized semiconductor laser sources |
US6418258B1 (en) | 2000-06-09 | 2002-07-09 | Gazillion Bits, Inc. | Microstructured optical fiber with improved transmission efficiency and durability |
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 |
US6735350B1 (en) | 2001-08-31 | 2004-05-11 | Nlight Photonics Corporation | Passive depolarizer |
CA2447927A1 (en) * | 2002-03-22 | 2003-10-09 | Qtera Corporation | Depolarized optical signal transmitter |
US7002733B2 (en) * | 2003-01-30 | 2006-02-21 | Quantum Photonics, Inc. | Methods and devices for amplifying optical signals using a depolarizer |
US7146110B2 (en) | 2003-02-11 | 2006-12-05 | Optium Corporation | Optical transmitter with SBS suppression |
FR2859056B1 (fr) * | 2003-08-19 | 2005-09-30 | Cit Alcatel | Methode de formation d'un signal optique code suivant un format retour a zero ou non retour a zero |
US7555221B2 (en) * | 2004-12-23 | 2009-06-30 | Alcatel-Lucent Usa Inc. | Method and apparatus for polarization-independent RF spectrum analysis of an optical source |
US20070297807A1 (en) * | 2006-06-27 | 2007-12-27 | Yihong Chen | Noise mitigation in analog optical transmission systems using polarization scrambler |
JP2008054202A (ja) * | 2006-08-28 | 2008-03-06 | Sumitomo Osaka Cement Co Ltd | 光送信機 |
CN101505192B (zh) * | 2008-02-04 | 2011-09-21 | 华为技术有限公司 | 一种产生差分正交相移键控码光信号的方法及装置 |
FI20095116A0 (fi) * | 2009-02-06 | 2009-02-06 | Luxdyne Oy | Vaihekohinan vähentäminen optisessa järjestelmässä |
IL249320B2 (en) * | 2016-11-30 | 2023-06-01 | Elbit Systems Electro Optics Elop Ltd | Narrow film fiber laser with depolarization |
JP2020077666A (ja) * | 2018-11-05 | 2020-05-21 | 株式会社Kokusai Electric | 基板処理装置、半導体装置の製造方法、プログラムおよび記録媒体 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI74371C (fi) | 1982-06-04 | 1988-01-11 | British Telecomm | Optisk oeverfoering. |
JPS59155806A (ja) * | 1983-02-24 | 1984-09-05 | Kokusai Denshin Denwa Co Ltd <Kdd> | 無偏光素子 |
GB8515499D0 (en) * | 1985-06-19 | 1985-07-24 | British Telecomm | Digital information transmission system |
US5200964A (en) * | 1991-03-12 | 1993-04-06 | General Instrument Corporation | Broad linewidth lasers for optical fiber communication systems |
JP3223562B2 (ja) | 1992-04-07 | 2001-10-29 | 株式会社日立製作所 | 光送信装置、光伝送装置および光変調器 |
EP0570151B1 (de) | 1992-05-08 | 1997-10-29 | Kokusai Denshin Denwa Co., Ltd | Optischer Sender mit Lichtsignal von geringem Polarisationsgrad und optische entpolarisierende Schaltung |
US5477375A (en) * | 1993-04-30 | 1995-12-19 | At&T Corp. | Optical soliton generator |
JP3284507B2 (ja) * | 1993-06-28 | 2002-05-20 | 富士通株式会社 | 光通信システム用の光送信装置及び光増幅装置 |
-
1995
- 1995-12-21 IT IT95MI002722A patent/IT1279248B1/it active IP Right Grant
-
1996
- 1996-12-03 US US08/759,792 patent/US5910852A/en not_active Expired - Lifetime
- 1996-12-06 NZ NZ299898A patent/NZ299898A/en not_active IP Right Cessation
- 1996-12-10 AU AU74270/96A patent/AU709120B2/en not_active Expired
- 1996-12-11 CA CA002192635A patent/CA2192635A1/en not_active Abandoned
- 1996-12-17 EP EP96120224A patent/EP0781001B1/de not_active Expired - Lifetime
- 1996-12-17 DE DE69631817T patent/DE69631817T2/de not_active Expired - Lifetime
- 1996-12-19 AR ARP960105776A patent/AR005149A1/es active IP Right Grant
- 1996-12-20 BR BR9604740A patent/BR9604740A/pt active Search and Examination
- 1996-12-20 CN CN96121593A patent/CN1159688A/zh active Pending
- 1996-12-20 JP JP8341652A patent/JPH09200128A/ja active Pending
- 1996-12-21 KR KR1019960069756A patent/KR970048630A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
AU709120B2 (en) | 1999-08-19 |
ITMI952722A1 (it) | 1997-06-21 |
AR005149A1 (es) | 1999-04-14 |
BR9604740A (pt) | 1998-06-23 |
ITMI952722A0 (de) | 1995-12-21 |
NZ299898A (en) | 1997-12-19 |
IT1279248B1 (it) | 1997-12-09 |
EP0781001B1 (de) | 2004-03-10 |
CA2192635A1 (en) | 1997-06-22 |
AU7427096A (en) | 1997-06-26 |
EP0781001A1 (de) | 1997-06-25 |
KR970048630A (ko) | 1997-07-29 |
JPH09200128A (ja) | 1997-07-31 |
US5910852A (en) | 1999-06-08 |
CN1159688A (zh) | 1997-09-17 |
DE69631817T2 (de) | 2005-03-17 |
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