JPS542143A - Variable light attenuator - Google Patents

Variable light attenuator

Info

Publication number
JPS542143A
JPS542143A JP6717877A JP6717877A JPS542143A JP S542143 A JPS542143 A JP S542143A JP 6717877 A JP6717877 A JP 6717877A JP 6717877 A JP6717877 A JP 6717877A JP S542143 A JPS542143 A JP S542143A
Authority
JP
Japan
Prior art keywords
variable light
light attenuator
disposing
sheets
expanded
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
JP6717877A
Other languages
Japanese (ja)
Inventor
Norio Takato
Takashi Kurokawa
Yuzo Katayama
Tetsuya Miki
Hiroshi Aoyama
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.)
NTT Inc
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 JP6717877A priority Critical patent/JPS542143A/en
Publication of JPS542143A publication Critical patent/JPS542143A/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
    • G02B6/26—Optical coupling means
    • G02B6/262—Optical details of coupling light into, or out of, or between fibre ends, e.g. special fibre end shapes or associated optical elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Optical Integrated Circuits (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

PURPOSE:To readily perform adjustment of light attenuating quantity with a simple constitution by so disposing two sheets of substrates whose optical guides are expanded in taper form that the optical guide expanding portions mutually oppose.
JP6717877A 1977-06-07 1977-06-07 Variable light attenuator Pending JPS542143A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6717877A JPS542143A (en) 1977-06-07 1977-06-07 Variable light attenuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6717877A JPS542143A (en) 1977-06-07 1977-06-07 Variable light attenuator

Publications (1)

Publication Number Publication Date
JPS542143A true JPS542143A (en) 1979-01-09

Family

ID=13337361

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6717877A Pending JPS542143A (en) 1977-06-07 1977-06-07 Variable light attenuator

Country Status (1)

Country Link
JP (1) JPS542143A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60174969A (en) * 1984-02-21 1985-09-09 Asahi Optical Co Ltd Light quantity adjustor for light wave range finder
US4557556A (en) * 1983-10-28 1985-12-10 At&T Bell Laboratories Method of fabricating an optical attenuator by fusion splicing of optical fibers
US5109468A (en) * 1990-05-08 1992-04-28 M/A-Com Light Control Systems, Inc. Fixed value fiber optic attenuator
JPH04166803A (en) * 1990-10-30 1992-06-12 Seiko Giken:Kk Multifiber ribbon tape optical fiber variable attenuator
US5285516A (en) * 1992-03-18 1994-02-08 Kaptron, Inc. Fused fiber optic attenuator having axially overlapping fiber end portions
US5917985A (en) * 1995-12-30 1999-06-29 Korea Electronic Technology Institute Optical attenuator
US6611637B1 (en) 1997-12-08 2003-08-26 Sumitomo Electric Industries, Ltd. Dispersion-compensating module

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4557556A (en) * 1983-10-28 1985-12-10 At&T Bell Laboratories Method of fabricating an optical attenuator by fusion splicing of optical fibers
JPS60174969A (en) * 1984-02-21 1985-09-09 Asahi Optical Co Ltd Light quantity adjustor for light wave range finder
US5109468A (en) * 1990-05-08 1992-04-28 M/A-Com Light Control Systems, Inc. Fixed value fiber optic attenuator
JPH04166803A (en) * 1990-10-30 1992-06-12 Seiko Giken:Kk Multifiber ribbon tape optical fiber variable attenuator
US5285516A (en) * 1992-03-18 1994-02-08 Kaptron, Inc. Fused fiber optic attenuator having axially overlapping fiber end portions
US5917985A (en) * 1995-12-30 1999-06-29 Korea Electronic Technology Institute Optical attenuator
US6611637B1 (en) 1997-12-08 2003-08-26 Sumitomo Electric Industries, Ltd. Dispersion-compensating module

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