GB1436652A - Modulation apparatus of semiconductor laser device - Google Patents

Modulation apparatus of semiconductor laser device

Info

Publication number
GB1436652A
GB1436652A GB1355074A GB1355074A GB1436652A GB 1436652 A GB1436652 A GB 1436652A GB 1355074 A GB1355074 A GB 1355074A GB 1355074 A GB1355074 A GB 1355074A GB 1436652 A GB1436652 A GB 1436652A
Authority
GB
United Kingdom
Prior art keywords
pulse
laser
output
pcm
transistor
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
Application number
GB1355074A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co Ltd
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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Publication of GB1436652A publication Critical patent/GB1436652A/en
Expired legal-status Critical Current

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
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/503—Laser transmitters
    • H04B10/504—Laser transmitters using direct 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
    • H01S5/06—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
    • 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
    • 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
    • H04B10/524—Pulse modulation

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Semiconductor Lasers (AREA)
GB1355074A 1973-03-27 1974-03-27 Modulation apparatus of semiconductor laser device Expired GB1436652A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48034934A JPS49122990A (https=) 1973-03-27 1973-03-27

Publications (1)

Publication Number Publication Date
GB1436652A true GB1436652A (en) 1976-05-19

Family

ID=12428006

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1355074A Expired GB1436652A (en) 1973-03-27 1974-03-27 Modulation apparatus of semiconductor laser device

Country Status (4)

Country Link
US (1) US3925735A (https=)
JP (1) JPS49122990A (https=)
DE (1) DE2414850C3 (https=)
GB (1) GB1436652A (https=)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4001614A (en) * 1975-08-27 1977-01-04 Hughes Aircraft Company Bias circuit for a photo-avalanche diode
US4009385A (en) * 1976-03-22 1977-02-22 Bell Telephone Laboratories, Incorporated Laser control circuit
JPS5851435B2 (ja) * 1976-05-25 1983-11-16 富士通株式会社 発光素子の駆動方式
US4328558A (en) * 1978-03-09 1982-05-04 Motorola, Inc. RAM Address enable circuit for a microprocessor having an on-chip RAM
US4243951A (en) * 1978-06-12 1981-01-06 Rca Corporation High repetition rate driver circuit for modulation of injection lasers
US4237427A (en) * 1978-06-16 1980-12-02 International Telephone And Telegraph Corporation Apparatus for stabilizing a laser
US4716384A (en) * 1984-05-01 1987-12-29 Crosfield Electronics Limited Modulators
US4980891A (en) * 1989-12-22 1990-12-25 Bell Communications Research, Inc. Clocked optical regenerator and other optoelectronic functional circuits
EP0472318A3 (en) * 1990-08-06 1994-08-10 At & T Corp Led pulse shaping circuit
JPH07154015A (ja) * 1993-12-01 1995-06-16 Fujitsu Ltd レーザダイオード駆動回路
JP2655508B2 (ja) * 1995-03-07 1997-09-24 日本電気株式会社 光送信回路
US6917639B2 (en) * 2001-08-09 2005-07-12 Ricoh Company, Ltd. Laser driver circuit
GB2387285A (en) * 2002-03-19 2003-10-08 Denselight Semiconductors Pte High speed impedance matching module for laser modulation
US20080106493A1 (en) * 2006-11-03 2008-05-08 Motorola, Inc. Laser display having reduced power consumption and method of operating the same
US8463137B2 (en) * 2010-09-27 2013-06-11 Titan Photonics, Inc. System and method for transmissions via RF over glass

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3551840A (en) * 1965-01-18 1970-12-29 Bell Telephone Labor Inc Pulse code modulated optical maser
US3478280A (en) * 1966-10-14 1969-11-11 Gen Electric Pulse width modulated laser
US3579145A (en) * 1969-03-21 1971-05-18 Bell Telephone Labor Inc Modulator stabilization circuits
US3815045A (en) * 1972-10-06 1974-06-04 Hitachi Ltd Method of and device for modulating directly a semiconductor laser
JPS5513151B2 (https=) * 1972-11-10 1980-04-07

Also Published As

Publication number Publication date
US3925735A (en) 1975-12-09
DE2414850B2 (de) 1976-07-15
DE2414850C3 (de) 1979-02-08
DE2414850A1 (de) 1974-10-03
JPS49122990A (https=) 1974-11-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee