JPS5766415A - Optical head - Google Patents

Optical head

Info

Publication number
JPS5766415A
JPS5766415A JP55142731A JP14273180A JPS5766415A JP S5766415 A JPS5766415 A JP S5766415A JP 55142731 A JP55142731 A JP 55142731A JP 14273180 A JP14273180 A JP 14273180A JP S5766415 A JPS5766415 A JP S5766415A
Authority
JP
Japan
Prior art keywords
laser beam
optical fiber
semiconductor laser
laser diode
terminal
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
JP55142731A
Other languages
Japanese (ja)
Inventor
Seiichi Ogoshi
Yoichi Unno
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
Toshiba Corp
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55142731A priority Critical patent/JPS5766415A/en
Publication of JPS5766415A publication Critical patent/JPS5766415A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4206—Optical features

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Facsimile Heads (AREA)
  • Optical Head (AREA)

Abstract

PURPOSE:To obtain an invariably constant fine spot of laser beam by interposing a single-mode optical fiber between a semiconductor laser diode and an optical condensation system. CONSTITUTION:Laser beam emitted by a semiconductor laser diode 1 is made incident to one terminal of a single-mode optical fiber 4 and laser beam emitted from the other terminal is guides to an optical condensation sytem consisting of lenses 2a and 2b to be converged into fine spot light. The laser beam propagating through the optical fiber has constant NFP and beam spread determined by its diameter and NA, and consequently the anisotropy of the laser beam that the semiconductor laser diode generates is eliminated.
JP55142731A 1980-10-13 1980-10-13 Optical head Pending JPS5766415A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55142731A JPS5766415A (en) 1980-10-13 1980-10-13 Optical head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55142731A JPS5766415A (en) 1980-10-13 1980-10-13 Optical head

Publications (1)

Publication Number Publication Date
JPS5766415A true JPS5766415A (en) 1982-04-22

Family

ID=15322262

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55142731A Pending JPS5766415A (en) 1980-10-13 1980-10-13 Optical head

Country Status (1)

Country Link
JP (1) JPS5766415A (en)

Similar Documents

Publication Publication Date Title
US4165496A (en) Optical fiber light tap
EP0207960A4 (en) Delivery system for high-energy pulsed ultraviolet laser light.
JPS5640737A (en) Damage detector for optical fiber for laser power transmission
KR850002522A (en) Fiber optic amplifier
EP0155379A3 (en) Arrangement for coupling a light wave guide to a semiconductor laser and method for manufacturing such an arrangement
JPS5535369A (en) Coupling device of semiconductor laser and optical fiber
JPS5766415A (en) Optical head
JPS57158823A (en) Method for incidence of light to tapered fiber
JPS5723914A (en) Recorder
JPS5778002A (en) Optical isolator
JPS5768811A (en) Beam condensing device
JPS5668937A (en) Optical disk reproducing device
JPS5652713A (en) Optical fiber connecting terminal
JPS5797509A (en) Lighting system for endoscope
JPS6440912A (en) Lens for optical recording and reproducing device
JPS5635568A (en) Optical reading device
JPS5779472A (en) Optical fiber probe for laser doppler velocimeter
JPS5978589A (en) Photo semiconductor device
JPS56159604A (en) Total reflection terminator of optical fiber
SE8203597L (en) FIBER OPTICAL SENSOR WITH HIGH OPTICAL EFFICIENCY
JPS57204017A (en) Manufacture of optical condenser
JPS57174946A (en) Bidirectional optical transmission method
JPS5374084A (en) Measuring method for refractive index distribution of optical transmission path
JPS55164803A (en) Coupling method of semiconductor laser and optical fiber
JPS57150814A (en) Optical distributing circuit