JPS5264950A - Optically variable attenuator - Google Patents

Optically variable attenuator

Info

Publication number
JPS5264950A
JPS5264950A JP50140972A JP14097275A JPS5264950A JP S5264950 A JPS5264950 A JP S5264950A JP 50140972 A JP50140972 A JP 50140972A JP 14097275 A JP14097275 A JP 14097275A JP S5264950 A JPS5264950 A JP S5264950A
Authority
JP
Japan
Prior art keywords
variable attenuator
optically variable
connectors
effected
semi
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
JP50140972A
Other languages
Japanese (ja)
Other versions
JPS5837521B2 (en
Inventor
Kunio Hashimoto
Masaki Koyama
Koichi 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.)
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 JP50140972A priority Critical patent/JPS5837521B2/en
Publication of JPS5264950A publication Critical patent/JPS5264950A/en
Publication of JPS5837521B2 publication Critical patent/JPS5837521B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Optical Couplings Of Light Guides (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

PURPOSE:To provide an optically variable attenuator, in which semi-circular optical fibers are axially jointed through a metal cover and are turned relative to the fibers coupled through connectors so that the variable attenuation of incident light may be effected without any conversion of the incident mode.
JP50140972A 1975-11-25 1975-11-25 Hikari Kahengensuki Expired JPS5837521B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50140972A JPS5837521B2 (en) 1975-11-25 1975-11-25 Hikari Kahengensuki

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50140972A JPS5837521B2 (en) 1975-11-25 1975-11-25 Hikari Kahengensuki

Publications (2)

Publication Number Publication Date
JPS5264950A true JPS5264950A (en) 1977-05-28
JPS5837521B2 JPS5837521B2 (en) 1983-08-17

Family

ID=15281110

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50140972A Expired JPS5837521B2 (en) 1975-11-25 1975-11-25 Hikari Kahengensuki

Country Status (1)

Country Link
JP (1) JPS5837521B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59211002A (en) * 1983-05-09 1984-11-29 アメリカン・テレフォン・アンド・テレグラフ・カムパニー Optical fiber damper and inline optical fiber pass filter
US6311010B1 (en) 1999-11-17 2001-10-30 Telephone Services, Inc. Of Florida Variable optical attenuator with locking mechanism
JP2020013031A (en) * 2018-07-19 2020-01-23 日本電信電話株式会社 Mode equalization filter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0511471Y2 (en) * 1987-11-20 1993-03-22

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59211002A (en) * 1983-05-09 1984-11-29 アメリカン・テレフォン・アンド・テレグラフ・カムパニー Optical fiber damper and inline optical fiber pass filter
JPH0676917U (en) * 1983-05-09 1994-10-28 アメリカン テレフォン アンド テレグラフ カムパニー Optical fiber attenuator
US6311010B1 (en) 1999-11-17 2001-10-30 Telephone Services, Inc. Of Florida Variable optical attenuator with locking mechanism
JP2020013031A (en) * 2018-07-19 2020-01-23 日本電信電話株式会社 Mode equalization filter
WO2020017447A1 (en) * 2018-07-19 2020-01-23 日本電信電話株式会社 Mode equalization filter

Also Published As

Publication number Publication date
JPS5837521B2 (en) 1983-08-17

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