IT1159851B - Perfezionamenti ai sistemi di trasmissione a divisione di lunghezza d'onda - Google Patents
Perfezionamenti ai sistemi di trasmissione a divisione di lunghezza d'ondaInfo
- Publication number
- IT1159851B IT1159851B IT68431/78A IT6843178A IT1159851B IT 1159851 B IT1159851 B IT 1159851B IT 68431/78 A IT68431/78 A IT 68431/78A IT 6843178 A IT6843178 A IT 6843178A IT 1159851 B IT1159851 B IT 1159851B
- Authority
- IT
- Italy
- Prior art keywords
- wave length
- transmission systems
- division transmission
- length division
- systems
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/08—Arrangements for combining channels
-
- 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
- H04B10/2589—Bidirectional transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/12—Arrangements for reducing cross-talk between channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT68431/78A IT1159851B (it) | 1978-06-20 | 1978-06-20 | Perfezionamenti ai sistemi di trasmissione a divisione di lunghezza d'onda |
JP7001579A JPS553295A (en) | 1978-06-20 | 1979-06-06 | Wavelength dividing transmitter |
EP79101961A EP0009534A1 (en) | 1978-06-20 | 1979-06-15 | Wavelength division system with reduced cross-talking between each of the channels |
US06/049,507 US4267590A (en) | 1978-06-20 | 1979-06-18 | Fiber-optical data-communication system using carriers of different wavelengths |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT68431/78A IT1159851B (it) | 1978-06-20 | 1978-06-20 | Perfezionamenti ai sistemi di trasmissione a divisione di lunghezza d'onda |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7868431A0 IT7868431A0 (it) | 1978-06-20 |
IT1159851B true IT1159851B (it) | 1987-03-04 |
Family
ID=11309384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT68431/78A IT1159851B (it) | 1978-06-20 | 1978-06-20 | Perfezionamenti ai sistemi di trasmissione a divisione di lunghezza d'onda |
Country Status (4)
Country | Link |
---|---|
US (1) | US4267590A (it) |
EP (1) | EP0009534A1 (it) |
JP (1) | JPS553295A (it) |
IT (1) | IT1159851B (it) |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2490432A1 (fr) * | 1980-09-12 | 1982-03-19 | Lignes Telegraph Telephon | Dispositif de separation de deux signaux lumineux emis par des sources de longueurs d'onde differentes, et transmis sur une meme fibre optique, et recepteur comportant un tel dispositif |
DE3044620A1 (de) * | 1980-11-27 | 1982-07-08 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Digitales nachrichtenuebertragungssystem |
JPS5825202A (ja) * | 1981-07-21 | 1983-02-15 | Ishihara Sangyo Kaisha Ltd | 磁気記録材料用針状α−FeOOHの製造方法 |
JPS5860505A (ja) * | 1981-10-06 | 1983-04-11 | Ishihara Sangyo Kaisha Ltd | 磁気記録材料用針状α−FeOOHの製造方法 |
JPS5864221A (ja) * | 1981-10-09 | 1983-04-16 | Ishihara Sangyo Kaisha Ltd | コバルト被着強磁性酸化鉄の製造方法 |
US4965825A (en) * | 1981-11-03 | 1990-10-23 | The Personalized Mass Media Corporation | Signal processing apparatus and methods |
US4467468A (en) * | 1981-12-28 | 1984-08-21 | At&T Bell Laboratories | Optical communication system |
US4622540A (en) * | 1984-03-05 | 1986-11-11 | American District Telegraph Company | Security system status reporting |
US4662715A (en) * | 1985-01-25 | 1987-05-05 | Westinghouse Electric Corp. | Fiber optic network with reduced coupling losses |
US4749254A (en) * | 1985-04-03 | 1988-06-07 | Seaver George A | Optical sensor system |
US4677618A (en) * | 1985-04-04 | 1987-06-30 | International Business Machines Corporation | Method and apparatus for deskewing WDM data transmitted through a dispersive medium |
US4726644A (en) * | 1985-07-08 | 1988-02-23 | General Dynamics Electronics Division | RF frequency multiplexed fiber optic data bus |
EP0212804A3 (en) * | 1985-08-19 | 1989-04-05 | Tektronix, Inc. | Multiple wavelength optical fiber measurement system |
US4775971A (en) * | 1986-03-27 | 1988-10-04 | American Telephone And Telegraph Company, At&T Bell Laboratories | Optical communication system |
US4754452A (en) * | 1986-09-11 | 1988-06-28 | American Telephone And Telegraph Company, At&T Bell Laboratories | Optical local area network using a common optical carrier with separate user angle modulation |
US4800555A (en) * | 1987-03-03 | 1989-01-24 | American Telephone And Telegraph Company, At&T Bell Laboratories | Technique for repelling carriers in optical communications to minimize mutual interference |
GB2272813B (en) * | 1987-06-20 | 1994-10-05 | Stc Plc | Optical fibre transmission system |
US4860287A (en) * | 1987-11-05 | 1989-08-22 | People's Telephone Cooperative, Inc. | Network having a synchronizer for synchronization between a primary and a remote station |
GB8727847D0 (en) * | 1987-11-27 | 1987-12-31 | British Telecomm | Communication system |
US5406553A (en) * | 1987-11-27 | 1995-04-11 | British Telecommunications Public Limited Company | Apparatus and method for converting a frequency division multiplex to a time division multiplex |
AU606241B2 (en) * | 1987-11-27 | 1991-01-31 | British Telecommunications Public Limited Company | Apparatus and method for converting a frequency division multiplex to a time division multiplex |
US4916689A (en) * | 1987-12-29 | 1990-04-10 | Eaton Corporation | Communications apparatus for encoding and decoding multiplexed optical signal |
US5177630A (en) * | 1990-12-14 | 1993-01-05 | Westinghouse Electric Corp. | Method and apparatus for generating and transferring high speed data for high speed testing applications |
US5185833A (en) * | 1991-02-13 | 1993-02-09 | International Business Machines Corporation | Modular active fiber optic coupler system |
US5131061A (en) * | 1991-02-13 | 1992-07-14 | International Business Machines Corp. | Modular active fiber optic coupler system |
US5101455A (en) * | 1991-04-26 | 1992-03-31 | The United States Of America As Represented By The Secretary Of The Air Force | Recirculating binary fiberoptic delay line apparatus for time steering |
JP3414616B2 (ja) * | 1997-04-21 | 2003-06-09 | 沖電気工業株式会社 | 光伝送システム |
FR2775526B1 (fr) * | 1998-02-27 | 2000-04-21 | Sgs Thomson Microelectronics | Dispositif de test en production des caracteristiques dynamiques de composants utilisant des transmissions serie |
JP3715429B2 (ja) * | 1998-04-16 | 2005-11-09 | 富士通株式会社 | パラレル光送信/光受信モジュール |
JP3440886B2 (ja) * | 1999-06-16 | 2003-08-25 | 日本電気株式会社 | 波長多重光伝送システム |
US6954593B1 (en) * | 1999-10-29 | 2005-10-11 | Matsushita Electric Industrial Co., Ltd. | Burst optical communication apparatus |
FR2832571B1 (fr) * | 2001-11-22 | 2004-04-16 | Cit Alcatel | Systeme de transmission par fibres optiques a horloge commune |
CA2508296A1 (fr) * | 2002-12-02 | 2004-06-24 | Ekinops | Procede de transmission mutualisee longue distance par fibre optique |
US20050094635A1 (en) * | 2003-08-08 | 2005-05-05 | Hunt Mark A. | Ethernet SCSI simulator for control of shows |
ES1055990Y (es) * | 2003-10-31 | 2004-06-01 | Borderias Miguel Angel Lopez | Disposicion funeraria ecologica para cremaciones y enterramientos. |
KR20160098282A (ko) * | 2013-12-11 | 2016-08-18 | 아레바 게엠베하 | 원자력 발전소용 전송 시스템과 그 방법 |
US10009112B2 (en) * | 2014-12-26 | 2018-06-26 | Finisar Corporation | Electromagnetic interference reduction |
JP6738682B2 (ja) * | 2016-08-01 | 2020-08-12 | 日本ルメンタム株式会社 | 光送受信器、光送信集積回路及び光受信集積回路 |
US10057672B2 (en) * | 2016-10-04 | 2018-08-21 | Nxp B.V. | Optical communication interface |
EP3349374A1 (en) * | 2017-01-17 | 2018-07-18 | Alcatel Lucent | Method for compensating crosstalk in an optical communication system |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS499241B1 (it) * | 1967-08-07 | 1974-03-02 | ||
US3755676A (en) * | 1972-01-24 | 1973-08-28 | Bell Telephone Labor Inc | Spacially multiplexed optical beam communication system |
US3920983A (en) * | 1973-10-10 | 1975-11-18 | Gte Laboratories Inc | Multi-channel optical communications system utilizing multi wavelength dye laser |
US3875534A (en) * | 1973-10-26 | 1975-04-01 | Us Army | Technique to PCM high power lasers |
AR208190A1 (es) * | 1974-02-11 | 1976-12-09 | Stauffer Chemical Co | Aditivo de sales amonicas de acidos fosforados para fluidos funcionales |
GB1514556A (en) * | 1975-09-24 | 1978-06-14 | Decca Ltd | Signal processor for reducing interference between frequency-modulated signals |
FR2337466A1 (fr) * | 1975-12-29 | 1977-07-29 | Cit Alcatel | Procede de reduction des bruits d'intermodulation dans une chaine d'amplificateurs electroniques |
JPS5390803A (en) * | 1977-01-21 | 1978-08-10 | Hitachi Cable Ltd | Optical communication system |
DE2708638A1 (de) * | 1977-02-28 | 1978-08-31 | Siemens Ag | Kommunikationssystem |
-
1978
- 1978-06-20 IT IT68431/78A patent/IT1159851B/it active
-
1979
- 1979-06-06 JP JP7001579A patent/JPS553295A/ja active Pending
- 1979-06-15 EP EP79101961A patent/EP0009534A1/en not_active Withdrawn
- 1979-06-18 US US06/049,507 patent/US4267590A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0009534A1 (en) | 1980-04-16 |
JPS553295A (en) | 1980-01-11 |
US4267590A (en) | 1981-05-12 |
IT7868431A0 (it) | 1978-06-20 |
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