JPS55130503A - Light attenuator - Google Patents

Light attenuator

Info

Publication number
JPS55130503A
JPS55130503A JP3790579A JP3790579A JPS55130503A JP S55130503 A JPS55130503 A JP S55130503A JP 3790579 A JP3790579 A JP 3790579A JP 3790579 A JP3790579 A JP 3790579A JP S55130503 A JPS55130503 A JP S55130503A
Authority
JP
Japan
Prior art keywords
holder
groove
fibers
pressed
optical fiber
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
JP3790579A
Other languages
Japanese (ja)
Inventor
Shigefumi Masuda
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP3790579A priority Critical patent/JPS55130503A/en
Publication of JPS55130503A publication Critical patent/JPS55130503A/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
    • G02B6/264—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting
    • G02B6/266—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting the optical element being an attenuator

Landscapes

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

Abstract

PURPOSE:To adjust the quantity of attenuation with high reproducibility over a wide range by using a holder with a V-groove and a pressing member. CONSTITUTION:V-grooved holder 15 made of quartz or sapphire and pressing plate 17 pressed by spring 16 are arranged between finely moving stand 11 and roughly moving stand 12. Emergent end C of first optical fiber 13 and incident end D of second optical fiber 14 are placed opposite to each other in the V-groove of holder 15 and pressed from the upper part with plate 17. Fibers 13, 14 are then slid along the groove surface with stands 11, 12 to change distance l between ends C, D. Since fibers 13, 14 move along the common groove surface, no axial slippage occurs, and a transmission loss at a certain value of distance l is obtained with high reproducibility.
JP3790579A 1979-03-30 1979-03-30 Light attenuator Pending JPS55130503A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3790579A JPS55130503A (en) 1979-03-30 1979-03-30 Light attenuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3790579A JPS55130503A (en) 1979-03-30 1979-03-30 Light attenuator

Publications (1)

Publication Number Publication Date
JPS55130503A true JPS55130503A (en) 1980-10-09

Family

ID=12510551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3790579A Pending JPS55130503A (en) 1979-03-30 1979-03-30 Light attenuator

Country Status (1)

Country Link
JP (1) JPS55130503A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60176003A (en) * 1984-02-22 1985-09-10 Nippon Telegr & Teleph Corp <Ntt> Fixed optical attenuator
JPH01161210A (en) * 1987-12-18 1989-06-23 Nec Corp Driving part supporting structure for optical switch
US4929169A (en) * 1987-06-19 1990-05-29 Mitsubishi Rayon Co. Working equipment for roughening the side of optical fiber
US5050956A (en) * 1990-09-20 1991-09-24 Hunter Associates Laboratory Inc. Optical fiber attenuator and connecting element

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4942940B1 (en) * 1969-07-01 1974-11-18
JPS5098339A (en) * 1973-12-21 1975-08-05
JPS5180238A (en) * 1975-01-09 1976-07-13 Nippon Telegraph & Telephone
JPS5418760A (en) * 1977-07-13 1979-02-13 Oki Electric Ind Co Ltd Optical fiber connector and production of the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4942940B1 (en) * 1969-07-01 1974-11-18
JPS5098339A (en) * 1973-12-21 1975-08-05
JPS5180238A (en) * 1975-01-09 1976-07-13 Nippon Telegraph & Telephone
JPS5418760A (en) * 1977-07-13 1979-02-13 Oki Electric Ind Co Ltd Optical fiber connector and production of the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60176003A (en) * 1984-02-22 1985-09-10 Nippon Telegr & Teleph Corp <Ntt> Fixed optical attenuator
US4929169A (en) * 1987-06-19 1990-05-29 Mitsubishi Rayon Co. Working equipment for roughening the side of optical fiber
JPH01161210A (en) * 1987-12-18 1989-06-23 Nec Corp Driving part supporting structure for optical switch
US5050956A (en) * 1990-09-20 1991-09-24 Hunter Associates Laboratory Inc. Optical fiber attenuator and connecting element

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