JPS5456849A - Optical branching circuit - Google Patents

Optical branching circuit

Info

Publication number
JPS5456849A
JPS5456849A JP12371677A JP12371677A JPS5456849A JP S5456849 A JPS5456849 A JP S5456849A JP 12371677 A JP12371677 A JP 12371677A JP 12371677 A JP12371677 A JP 12371677A JP S5456849 A JPS5456849 A JP S5456849A
Authority
JP
Japan
Prior art keywords
face
thru
optical
optical axis
optical fibers
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
JP12371677A
Other languages
Japanese (ja)
Other versions
JPS6051087B2 (en
Inventor
Koichi Minemura
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP52123716A priority Critical patent/JPS6051087B2/en
Priority to US05/949,745 priority patent/US4285570A/en
Publication of JPS5456849A publication Critical patent/JPS5456849A/en
Publication of JPS6051087B2 publication Critical patent/JPS6051087B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Testing Of Optical Devices Or Fibers (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE: To achieve lower light loss and easier assembling by using an optical transmission body having the specific refractive index distribution and length as well as a reflecting means.
CONSTITUTION: Optical fibers 11 thru 17 are disposed parallel in proximity to the end face 3 of an optical transmission boey 1 which has a refractive index distribution decreasing in proportion to the square of the distance from the optical axis face 4, both end faces 2, 3 perpendicular to the optical axis face 4 and a length about 1/4m(m is a positive integer) times the pitch at which light propagates Zigzag and whose end face 2 is made reflecting face. This causes the light incident in spot form to the end face 3 from the optical fibers 11 etc. to advance light rays 6 and to be reflected by the end face 2 then to be emitted as a slender beam from the end face 3. Since one end faces of the optical fibers 11 thru 17 are in proximity to the end face 3 and the optical axis 21 thru 27 are on the extension of the optical axis face 4, light enters the optical fibers 12 thru 17 at low loss
COPYRIGHT: (C)1979,JPO&Japio
JP52123716A 1977-10-14 1977-10-14 optical distribution circuit Expired JPS6051087B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP52123716A JPS6051087B2 (en) 1977-10-14 1977-10-14 optical distribution circuit
US05/949,745 US4285570A (en) 1977-10-14 1978-10-10 Light branching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52123716A JPS6051087B2 (en) 1977-10-14 1977-10-14 optical distribution circuit

Publications (2)

Publication Number Publication Date
JPS5456849A true JPS5456849A (en) 1979-05-08
JPS6051087B2 JPS6051087B2 (en) 1985-11-12

Family

ID=14867585

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52123716A Expired JPS6051087B2 (en) 1977-10-14 1977-10-14 optical distribution circuit

Country Status (1)

Country Link
JP (1) JPS6051087B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6175308A (en) * 1984-09-21 1986-04-17 Hoya Corp Optical distributor
US4753508A (en) * 1982-05-14 1988-06-28 U.S. Philips Corp. Optical coupling device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6246449B1 (en) 1996-08-16 2001-06-12 Rosen Products Llc Display unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4753508A (en) * 1982-05-14 1988-06-28 U.S. Philips Corp. Optical coupling device
JPS6175308A (en) * 1984-09-21 1986-04-17 Hoya Corp Optical distributor

Also Published As

Publication number Publication date
JPS6051087B2 (en) 1985-11-12

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