JPH0451894B2 - - Google Patents

Info

Publication number
JPH0451894B2
JPH0451894B2 JP56198419A JP19841981A JPH0451894B2 JP H0451894 B2 JPH0451894 B2 JP H0451894B2 JP 56198419 A JP56198419 A JP 56198419A JP 19841981 A JP19841981 A JP 19841981A JP H0451894 B2 JPH0451894 B2 JP H0451894B2
Authority
JP
Japan
Prior art keywords
circuit
laser diode
output
constant current
video signal
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 - Lifetime
Application number
JP56198419A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58100242A (ja
Inventor
Harushige Urata
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP56198419A priority Critical patent/JPS58100242A/ja
Publication of JPS58100242A publication Critical patent/JPS58100242A/ja
Publication of JPH0451894B2 publication Critical patent/JPH0451894B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Semiconductor Lasers (AREA)
  • Optical Communication System (AREA)
JP56198419A 1981-12-11 1981-12-11 バイアス電流可変形映像信号光変調回路 Granted JPS58100242A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56198419A JPS58100242A (ja) 1981-12-11 1981-12-11 バイアス電流可変形映像信号光変調回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56198419A JPS58100242A (ja) 1981-12-11 1981-12-11 バイアス電流可変形映像信号光変調回路

Publications (2)

Publication Number Publication Date
JPS58100242A JPS58100242A (ja) 1983-06-14
JPH0451894B2 true JPH0451894B2 (enrdf_load_stackoverflow) 1992-08-20

Family

ID=16390792

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56198419A Granted JPS58100242A (ja) 1981-12-11 1981-12-11 バイアス電流可変形映像信号光変調回路

Country Status (1)

Country Link
JP (1) JPS58100242A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60150338A (ja) * 1984-01-18 1985-08-08 Matsushita Electric Ind Co Ltd 光出力自動調整装置
JP2561235B2 (ja) * 1985-02-20 1996-12-04 シャープ株式会社 半導体レ−ザ駆動装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6053373B2 (ja) * 1978-05-22 1985-11-25 松下電器産業株式会社 画像信号の再生光パワ−ドリフト制御方法

Also Published As

Publication number Publication date
JPS58100242A (ja) 1983-06-14

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