JPS5389384A - Light output stabilizing system - Google Patents

Light output stabilizing system

Info

Publication number
JPS5389384A
JPS5389384A JP289077A JP289077A JPS5389384A JP S5389384 A JPS5389384 A JP S5389384A JP 289077 A JP289077 A JP 289077A JP 289077 A JP289077 A JP 289077A JP S5389384 A JPS5389384 A JP S5389384A
Authority
JP
Japan
Prior art keywords
light output
stabilizing system
output stabilizing
temperature
stabilizing
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.)
Pending
Application number
JP289077A
Other languages
Japanese (ja)
Inventor
Kiichi Yamashita
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP289077A priority Critical patent/JPS5389384A/en
Publication of JPS5389384A publication Critical patent/JPS5389384A/en
Pending legal-status Critical Current

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
    • H01S5/068—Stabilisation of laser output parameters
    • H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters
    • 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
    • H01S5/06837—Stabilising otherwise than by an applied electric field or current, e.g. by controlling the temperature

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Semiconductor Lasers (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To simplify the constitution of light output stabilizing system using a semiconductor laser diode by stabilizing the light output by temperature controlling when ambient temperature is higher than set temperature and by current controlling when it is lower.
JP289077A 1977-01-17 1977-01-17 Light output stabilizing system Pending JPS5389384A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP289077A JPS5389384A (en) 1977-01-17 1977-01-17 Light output stabilizing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP289077A JPS5389384A (en) 1977-01-17 1977-01-17 Light output stabilizing system

Publications (1)

Publication Number Publication Date
JPS5389384A true JPS5389384A (en) 1978-08-05

Family

ID=11541943

Family Applications (1)

Application Number Title Priority Date Filing Date
JP289077A Pending JPS5389384A (en) 1977-01-17 1977-01-17 Light output stabilizing system

Country Status (1)

Country Link
JP (1) JPS5389384A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4858219A (en) * 1984-11-20 1989-08-15 Olympus Optical Company Limited Optical information recording reproducing memory system with both power control and optical irradiation inhibiting circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4858219A (en) * 1984-11-20 1989-08-15 Olympus Optical Company Limited Optical information recording reproducing memory system with both power control and optical irradiation inhibiting circuit

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