JPH0551974B2 - - Google Patents

Info

Publication number
JPH0551974B2
JPH0551974B2 JP58166730A JP16673083A JPH0551974B2 JP H0551974 B2 JPH0551974 B2 JP H0551974B2 JP 58166730 A JP58166730 A JP 58166730A JP 16673083 A JP16673083 A JP 16673083A JP H0551974 B2 JPH0551974 B2 JP H0551974B2
Authority
JP
Japan
Prior art keywords
waveguide
optical waveguide
branched optical
open
refractive index
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
JP58166730A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6059547A (ja
Inventor
Manabu Yamamoto
Hitoshi Kawaguchi
Hiroo Ukita
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP58166730A priority Critical patent/JPS6059547A/ja
Publication of JPS6059547A publication Critical patent/JPS6059547A/ja
Publication of JPH0551974B2 publication Critical patent/JPH0551974B2/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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4246—Bidirectionally operating package structures
    • 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
    • G11B7/122—Flying-type heads, e.g. analogous to Winchester type in magnetic recording
    • 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
    • G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
    • G11B7/124—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate the integrated head arrangements including waveguides
    • 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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Head (AREA)
  • Optical Integrated Circuits (AREA)
JP58166730A 1983-09-12 1983-09-12 光学ヘツド Granted JPS6059547A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58166730A JPS6059547A (ja) 1983-09-12 1983-09-12 光学ヘツド

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58166730A JPS6059547A (ja) 1983-09-12 1983-09-12 光学ヘツド

Publications (2)

Publication Number Publication Date
JPS6059547A JPS6059547A (ja) 1985-04-05
JPH0551974B2 true JPH0551974B2 (enrdf_load_stackoverflow) 1993-08-04

Family

ID=15836680

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58166730A Granted JPS6059547A (ja) 1983-09-12 1983-09-12 光学ヘツド

Country Status (1)

Country Link
JP (1) JPS6059547A (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2609221B2 (ja) * 1985-04-22 1997-05-14 ソニー株式会社 半導体レーザ装置
JPS62173645A (ja) * 1986-01-28 1987-07-30 Omron Tateisi Electronics Co 光情報処理装置におけるピツクアツプ・ヘツド
JPS62124626U (enrdf_load_stackoverflow) * 1986-01-28 1987-08-07
JPS62124625U (enrdf_load_stackoverflow) * 1986-01-28 1987-08-07
JPS62173646A (ja) * 1986-01-28 1987-07-30 Omron Tateisi Electronics Co 光情報処理装置におけるピツクアツプ・ヘツド
JPS62275332A (ja) * 1986-05-23 1987-11-30 Nippon Telegr & Teleph Corp <Ntt> 光ヘツド
JPS6331033A (ja) * 1986-07-25 1988-02-09 Asahi Glass Co Ltd 光ピツクアツプ
JP2572050B2 (ja) * 1986-11-05 1997-01-16 シャープ株式会社 導波路型光ヘツド
JPS6398508U (enrdf_load_stackoverflow) * 1986-12-16 1988-06-25
JP2005292382A (ja) 2004-03-31 2005-10-20 Kazuyuki Hirao 光学素子及びその製造方法並びに光学装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4888951A (enrdf_load_stackoverflow) * 1972-02-23 1973-11-21
JPS5037402A (enrdf_load_stackoverflow) * 1973-08-03 1975-04-08

Also Published As

Publication number Publication date
JPS6059547A (ja) 1985-04-05

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