IT1271648B - Generatore laser a fibra ottica a concatenamento modale attivo ad impulsi a frequenza istantanea variabile - Google Patents
Generatore laser a fibra ottica a concatenamento modale attivo ad impulsi a frequenza istantanea variabileInfo
- Publication number
- IT1271648B IT1271648B ITMI941327A ITMI941327A IT1271648B IT 1271648 B IT1271648 B IT 1271648B IT MI941327 A ITMI941327 A IT MI941327A IT MI941327 A ITMI941327 A IT MI941327A IT 1271648 B IT1271648 B IT 1271648B
- Authority
- IT
- Italy
- Prior art keywords
- duration
- fiber optic
- fiber
- impulses
- laser generator
- Prior art date
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
- H04B10/25077—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion using soliton propagation
Abstract
Collegamento ottico ad alta velocità di trasmissione, comprendente una sorgente laser di generazione di impulsi, mezzi a fibra ottica di trasmissione, ed un ricevitore, in cui detti mezzi a fibra ottica formano un percorso ottico in fibra, tale che un segnale ad impulso di tipo solitonico è soggetto ad un allargamento temporale maggiore di 50% per effetto della dispersione cromatica, in cui detta sorgente laser comprende un laser a fibra ottica a concatenamento modale attivo ed armonico, con lunghezza di fibra, banda passante di filtro, potenza nella cavità scelti per l'emissione di impulsi a profilo temporale gaussiano, con durata e larghezza di banda tali che, al ricevitore, la durata degli impulsi stessi non è superiore più del 15% alla durata all'emissione.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI941327A IT1271648B (it) | 1994-06-27 | 1994-06-27 | Generatore laser a fibra ottica a concatenamento modale attivo ad impulsi a frequenza istantanea variabile |
US08/455,549 US5570438A (en) | 1994-06-27 | 1995-05-31 | Active-mode-locking optical-fibre pulsed laser generator having a variable instantaneous frequency |
CA002151441A CA2151441C (en) | 1994-06-27 | 1995-06-09 | Active-mode-locking optical fibre pulsed laser generator having a variable instantaneous frequency |
AU21637/95A AU682954B2 (en) | 1994-06-27 | 1995-06-13 | Active-mode-locking optical-fibre pulsed laser generator having a variable instantaneous frequency |
EP95109328A EP0692888B1 (en) | 1994-06-27 | 1995-06-16 | Active-mode-locking optical-fibre pulsed laser generator having a variable instantaneous frequency |
DE69527752T DE69527752T2 (de) | 1994-06-27 | 1995-06-16 | Aktiver modengekoppelter optisch gepulster Lasergenerator mit variabler Momentanfrequenz. |
BR9502281A BR9502281A (pt) | 1994-06-27 | 1995-06-27 | Gerador laser pulsante de fibra óptica no modo de travamento ativo possuindo uma frequência instanteamente variável |
JP7161077A JPH0851244A (ja) | 1994-06-27 | 1995-06-27 | 変更可能な瞬時周波数を有する能動型モード・ロッキング光ファイバ・パルス・レーザ発生器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI941327A IT1271648B (it) | 1994-06-27 | 1994-06-27 | Generatore laser a fibra ottica a concatenamento modale attivo ad impulsi a frequenza istantanea variabile |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI941327A0 ITMI941327A0 (it) | 1994-06-27 |
ITMI941327A1 ITMI941327A1 (it) | 1995-12-27 |
IT1271648B true IT1271648B (it) | 1997-06-04 |
Family
ID=11369169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI941327A IT1271648B (it) | 1994-06-27 | 1994-06-27 | Generatore laser a fibra ottica a concatenamento modale attivo ad impulsi a frequenza istantanea variabile |
Country Status (8)
Country | Link |
---|---|
US (1) | US5570438A (it) |
EP (1) | EP0692888B1 (it) |
JP (1) | JPH0851244A (it) |
AU (1) | AU682954B2 (it) |
BR (1) | BR9502281A (it) |
CA (1) | CA2151441C (it) |
DE (1) | DE69527752T2 (it) |
IT (1) | IT1271648B (it) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2346025B (en) * | 1995-09-11 | 2000-09-13 | Univ Southampton | Optical pulse propagation |
US6025947A (en) | 1996-05-02 | 2000-02-15 | Fujitsu Limited | Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied |
JPH1063350A (ja) * | 1996-08-14 | 1998-03-06 | Kokusai Denshin Denwa Co Ltd <Kdd> | 光周波数安定化装置 |
US7010231B1 (en) * | 1997-08-04 | 2006-03-07 | Cisco Photonics Italy S.R.L. | System and method of high-speed transmission and appropriate transmission apparatus |
WO2002025783A2 (en) * | 2000-09-22 | 2002-03-28 | Calmar Optcom, Inc. | Actively mode-locked fiber laser with controlled chirp output |
US6591047B2 (en) * | 2001-02-12 | 2003-07-08 | Eci Telecom Ltd. | Method and apparatus for compensation of nonlinearity in fiber optic links |
US7184553B2 (en) | 2002-02-07 | 2007-02-27 | Eci Telecom Ltd. | Method and system for encryption of optical signals |
JP4397239B2 (ja) * | 2004-01-15 | 2010-01-13 | 富士通株式会社 | 光伝送システム |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4447125A (en) * | 1981-06-09 | 1984-05-08 | Bell Telephone Laboratories, Incorporated | Low dispension single mode fiber |
US4439007A (en) * | 1981-06-09 | 1984-03-27 | Bell Telephone Laboratories, Incorporated | Low dispersion single mode fiber |
US4918751A (en) * | 1987-10-05 | 1990-04-17 | The University Of Rochester | Method for optical pulse transmission through optical fibers which increases the pulse power handling capacity of the fibers |
US5189483A (en) * | 1989-02-28 | 1993-02-23 | Fujitsu Limited | Apparatus for measurement of chromatic dispersion in a single mode optical fiber |
JPH06504415A (ja) * | 1990-10-18 | 1994-05-19 | テルストラ コーポレイション リミテッド | 疑似ソリトン通信システム |
US5185827A (en) * | 1991-09-26 | 1993-02-09 | At&T Bell Laboratories | Apparatus for compensating chromatic dispersion in optical fibers |
US5212711A (en) * | 1992-02-18 | 1993-05-18 | At&T Bell Laboratories | Harmonically mode-locked laser |
US5303079A (en) * | 1992-04-09 | 1994-04-12 | At&T Bell Laboratories | Tunable chirp, lightwave modulator for dispersion compensation |
JP2701189B2 (ja) * | 1992-09-25 | 1998-01-21 | 国際電信電話株式会社 | 光通信伝送路 |
IT1263613B (it) * | 1993-02-19 | 1996-08-27 | Pirelli Cavi Spa | Generatore laser a fibra ottica a concatenamento modale attivo |
-
1994
- 1994-06-27 IT ITMI941327A patent/IT1271648B/it active IP Right Grant
-
1995
- 1995-05-31 US US08/455,549 patent/US5570438A/en not_active Expired - Fee Related
- 1995-06-09 CA CA002151441A patent/CA2151441C/en not_active Expired - Lifetime
- 1995-06-13 AU AU21637/95A patent/AU682954B2/en not_active Expired
- 1995-06-16 DE DE69527752T patent/DE69527752T2/de not_active Expired - Lifetime
- 1995-06-16 EP EP95109328A patent/EP0692888B1/en not_active Expired - Lifetime
- 1995-06-27 BR BR9502281A patent/BR9502281A/pt active Search and Examination
- 1995-06-27 JP JP7161077A patent/JPH0851244A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
CA2151441C (en) | 1999-12-28 |
BR9502281A (pt) | 1997-03-11 |
EP0692888A2 (en) | 1996-01-17 |
DE69527752T2 (de) | 2003-04-24 |
ITMI941327A0 (it) | 1994-06-27 |
US5570438A (en) | 1996-10-29 |
AU682954B2 (en) | 1997-10-23 |
EP0692888A3 (en) | 1996-11-20 |
ITMI941327A1 (it) | 1995-12-27 |
CA2151441A1 (en) | 1995-12-28 |
AU2163795A (en) | 1996-01-11 |
EP0692888B1 (en) | 2002-08-14 |
DE69527752D1 (de) | 2002-09-19 |
JPH0851244A (ja) | 1996-02-20 |
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Legal Events
Date | Code | Title | Description |
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0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970626 |