JPS5998326A - 光学再生装置 - Google Patents

光学再生装置

Info

Publication number
JPS5998326A
JPS5998326A JP57208083A JP20808382A JPS5998326A JP S5998326 A JPS5998326 A JP S5998326A JP 57208083 A JP57208083 A JP 57208083A JP 20808382 A JP20808382 A JP 20808382A JP S5998326 A JPS5998326 A JP S5998326A
Authority
JP
Japan
Prior art keywords
laser
output
semiconductor laser
optical
laser chip
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.)
Granted
Application number
JP57208083A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0414423B2 (enrdf_load_stackoverflow
Inventor
Kenji Torasawa
虎沢　研示
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.)
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Sanyo Denki 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 Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP57208083A priority Critical patent/JPS5998326A/ja
Publication of JPS5998326A publication Critical patent/JPS5998326A/ja
Publication of JPH0414423B2 publication Critical patent/JPH0414423B2/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
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
JP57208083A 1982-11-26 1982-11-26 光学再生装置 Granted JPS5998326A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57208083A JPS5998326A (ja) 1982-11-26 1982-11-26 光学再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57208083A JPS5998326A (ja) 1982-11-26 1982-11-26 光学再生装置

Publications (2)

Publication Number Publication Date
JPS5998326A true JPS5998326A (ja) 1984-06-06
JPH0414423B2 JPH0414423B2 (enrdf_load_stackoverflow) 1992-03-12

Family

ID=16550356

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57208083A Granted JPS5998326A (ja) 1982-11-26 1982-11-26 光学再生装置

Country Status (1)

Country Link
JP (1) JPS5998326A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0414423B2 (enrdf_load_stackoverflow) 1992-03-12

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