JPS57157584A - Photocoupling circuit for semiconductor laser - Google Patents

Photocoupling circuit for semiconductor laser

Info

Publication number
JPS57157584A
JPS57157584A JP4166481A JP4166481A JPS57157584A JP S57157584 A JPS57157584 A JP S57157584A JP 4166481 A JP4166481 A JP 4166481A JP 4166481 A JP4166481 A JP 4166481A JP S57157584 A JPS57157584 A JP S57157584A
Authority
JP
Japan
Prior art keywords
light
semiconductor laser
lens
plane vertical
optical
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
JP4166481A
Other languages
Japanese (ja)
Other versions
JPS6250071B2 (en
Inventor
Masatoshi Saruwatari
Toshihiko Sugie
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 JP4166481A priority Critical patent/JPS57157584A/en
Publication of JPS57157584A publication Critical patent/JPS57157584A/en
Publication of JPS6250071B2 publication Critical patent/JPS6250071B2/ja
Granted 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
    • 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
    • G02B6/4216—Packages, e.g. shape, construction, internal or external details incorporating polarisation-maintaining fibres
    • G02B6/4218—Optical features

Abstract

PURPOSE:To improve the coupling efficiency of a photocoupling circuit by setting an optical axis determined by a used crystal in a plane vertical to the deflecting direction of a semiconductor laser oscillation light or in a plane vertical to the propagating direction of the light and coupling the semiconductor laser to an optical fiber with a spherical lens having double refraction indexes while setting the optical axis. CONSTITUTION:A semiconductor laser 1 and a selfox lens 3 are coupled via a spherical lens 2 made of ruby or sapphire, an optical fiber 4 is connected to the output end of the lens 3, thereby forming a light coupling circuit. In this structure, the optical aixs C of the lens 3 having double refraction indexes is determined in a plane vertical to the deflecting direction of the oscillated light of the laser 1, or in a plane vertical to the propagating direction of the light. In this manner the coupling efficiency due to the isolated oscillation light is not remarkably deteriorated, and an inexpensive optical connector having low loss can be obtained.
JP4166481A 1981-03-24 1981-03-24 Photocoupling circuit for semiconductor laser Granted JPS57157584A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4166481A JPS57157584A (en) 1981-03-24 1981-03-24 Photocoupling circuit for semiconductor laser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4166481A JPS57157584A (en) 1981-03-24 1981-03-24 Photocoupling circuit for semiconductor laser

Publications (2)

Publication Number Publication Date
JPS57157584A true JPS57157584A (en) 1982-09-29
JPS6250071B2 JPS6250071B2 (en) 1987-10-22

Family

ID=12614645

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4166481A Granted JPS57157584A (en) 1981-03-24 1981-03-24 Photocoupling circuit for semiconductor laser

Country Status (1)

Country Link
JP (1) JPS57157584A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8801114U1 (en) * 1988-01-30 1988-03-31 Joh. Friedrich Behrens Ag, 2070 Ahrensburg, De
JPH03111179A (en) * 1989-09-21 1991-05-10 Kanematsu Duo Fast Co Ltd Trigger mechanism for fastener driving machine

Also Published As

Publication number Publication date
JPS6250071B2 (en) 1987-10-22

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