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IT1241364B - Sistema di emissione sdi segnali ottici modulati - Google Patents

Sistema di emissione sdi segnali ottici modulati

Info

Publication number
IT1241364B
IT1241364B IT68036A IT6803690A IT1241364B IT 1241364 B IT1241364 B IT 1241364B IT 68036 A IT68036 A IT 68036A IT 6803690 A IT6803690 A IT 6803690A IT 1241364 B IT1241364 B IT 1241364B
Authority
IT
Italy
Prior art keywords
sdi
optical signals
modulated optical
emission system
system modulated
Prior art date
Application number
IT68036A
Other languages
English (en)
Other versions
IT9068036A1 (it
IT9068036A0 (it
Inventor
Fortunato Tito Arecchi
Massimo Calzavara
Giovanni Giacomelli
Original Assignee
Cselt Centro Studi Lab Telecom
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cselt Centro Studi Lab Telecom filed Critical Cselt Centro Studi Lab Telecom
Priority to IT68036A priority Critical patent/IT1241364B/it
Publication of IT9068036A0 publication Critical patent/IT9068036A0/it
Priority to US07/805,863 priority patent/US5197075A/en
Priority to CA002057649A priority patent/CA2057649C/en
Priority to JP3352860A priority patent/JPH07109914B2/ja
Priority to DE199191121874T priority patent/DE492480T1/de
Priority to EP91121874A priority patent/EP0492480B1/en
Priority to DE69104598T priority patent/DE69104598T2/de
Publication of IT9068036A1 publication Critical patent/IT9068036A1/it
Application granted granted Critical
Publication of IT1241364B publication Critical patent/IT1241364B/it

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/0607—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature
    • H01S5/0608—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature controlled by light, e.g. optical switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
    • H01S5/06209—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in single-section lasers
    • H01S5/06213—Amplitude modulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
    • H01S5/4006—Injection locking
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
    • H01S5/06209—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in single-section lasers
    • H01S5/06216—Pulse modulation or generation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
    • H01S5/06223—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes using delayed or positive feedback
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/068—Stabilisation of laser output parameters
    • H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S372/00—Coherent light generators
    • Y10S372/70—Optical delay

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Semiconductor Lasers (AREA)
  • Optical Communication System (AREA)
IT68036A 1990-12-21 1990-12-21 Sistema di emissione sdi segnali ottici modulati IT1241364B (it)

Priority Applications (7)

Application Number Priority Date Filing Date Title
IT68036A IT1241364B (it) 1990-12-21 1990-12-21 Sistema di emissione sdi segnali ottici modulati
US07/805,863 US5197075A (en) 1990-12-21 1991-12-10 Apparatus and method for the generation of modulated optical signals using a semiconductor laser
CA002057649A CA2057649C (en) 1990-12-21 1991-12-13 System for the generation of modulated optical signals
JP3352860A JPH07109914B2 (ja) 1990-12-21 1991-12-17 変調光信号発生システム
DE199191121874T DE492480T1 (de) 1990-12-21 1991-12-19 System zur erzeugung modulierter optischer signale.
EP91121874A EP0492480B1 (en) 1990-12-21 1991-12-19 A system for the generation of modulated optical signals
DE69104598T DE69104598T2 (de) 1990-12-21 1991-12-19 System zur Erzeugung modulierter optischer Signale.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT68036A IT1241364B (it) 1990-12-21 1990-12-21 Sistema di emissione sdi segnali ottici modulati

Publications (3)

Publication Number Publication Date
IT9068036A0 IT9068036A0 (it) 1990-12-21
IT9068036A1 IT9068036A1 (it) 1992-06-22
IT1241364B true IT1241364B (it) 1994-01-10

Family

ID=11307358

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68036A IT1241364B (it) 1990-12-21 1990-12-21 Sistema di emissione sdi segnali ottici modulati

Country Status (6)

Country Link
US (1) US5197075A (it)
EP (1) EP0492480B1 (it)
JP (1) JPH07109914B2 (it)
CA (1) CA2057649C (it)
DE (2) DE492480T1 (it)
IT (1) IT1241364B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5808770A (en) * 1995-12-29 1998-09-15 Lucent Technologies, Inc. Method and apparatus for using on-off-keying using laser relaxation oscillation

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1614648C3 (de) * 1967-11-03 1974-05-02 Siemens Ag, 1000 Berlin U. 8000 Muenchen Optischer Sender
US4390247A (en) * 1981-06-17 1983-06-28 Hazeltine Corporation Continuously variable delay line
GB8413502D0 (en) * 1984-05-25 1984-07-04 British Telecomm Mode locked laser light sources
US4660206A (en) * 1984-07-02 1987-04-21 Hughes Aircraft Company Chirp laser stabilization system
US4638483A (en) * 1984-07-30 1987-01-20 At&T Bell Laboratories High speed intensity modulated light source
JPS623534A (ja) * 1985-06-28 1987-01-09 Sharp Corp 光変調装置
JPH0758819B2 (ja) * 1987-09-25 1995-06-21 株式会社東芝 半導体レーザ駆動装置
JPH07109916B2 (ja) * 1988-05-26 1995-11-22 浜松ホトニクス株式会社 光強度安定化装置
US4856010A (en) * 1988-07-18 1989-08-08 Hughes Aircraft Company Laser frequency control
US4907237A (en) * 1988-10-18 1990-03-06 The United States Of America As Represented By The Secretary Of Commerce Optical feedback locking of semiconductor lasers
GB2231713B (en) * 1989-03-30 1994-03-23 Toshiba Kk Semiconductor laser apparatus
US5128950A (en) * 1989-08-02 1992-07-07 Hamamatsu Photonics K.K. Low noise pulsed light source using laser diode

Also Published As

Publication number Publication date
EP0492480A3 (en) 1992-07-29
EP0492480B1 (en) 1994-10-12
IT9068036A1 (it) 1992-06-22
CA2057649C (en) 1995-06-13
DE69104598T2 (de) 1995-03-23
US5197075A (en) 1993-03-23
JPH0555681A (ja) 1993-03-05
JPH07109914B2 (ja) 1995-11-22
DE69104598D1 (de) 1994-11-17
IT9068036A0 (it) 1990-12-21
EP0492480A2 (en) 1992-07-01
DE492480T1 (de) 1992-11-26
CA2057649A1 (en) 1992-06-22

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19951122