JPS5529812A - Photo switch - Google Patents

Photo switch

Info

Publication number
JPS5529812A
JPS5529812A JP10186578A JP10186578A JPS5529812A JP S5529812 A JPS5529812 A JP S5529812A JP 10186578 A JP10186578 A JP 10186578A JP 10186578 A JP10186578 A JP 10186578A JP S5529812 A JPS5529812 A JP S5529812A
Authority
JP
Japan
Prior art keywords
rays
fibers
lambda2
lambda1
wavelengths
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
JP10186578A
Other languages
Japanese (ja)
Inventor
Koichi Asatani
Kunio Hashimoto
Hideki Ishio
Kiyoshi Nosu
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 JP10186578A priority Critical patent/JPS5529812A/en
Publication of JPS5529812A publication Critical patent/JPS5529812A/en
Pending legal-status Critical Current

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  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

PURPOSE:To enable connection of rays of one or a plurality of wavelength of (n) fibers and (m) fibers by providing dielectric thin film filters having wavelength selection function between the fibers to be connected of rays. CONSTITUTION:Rays of wavelengths lambda1, lambda2,...lambdan and the light signals having undergone wavelength division multiplexing enter from optical fibers 61, 62,...6n. In order to connect the rays of the wavelengths lambda1, lambda2 out of the rays from one of the fibers 61, 62,...6n, a withdrawable filter 11i1 at the crossing point of the ray routes of the fibers 6i and 71 is inserted into the ray route to let only the rays of the wavelengths lambda1, lambda2 out of the rays from the fiber 6i be reflected and connect the same to the fiber 71 through a condensing lens 8i. Even in this case, the rays of the wavelengths other than lambda1, lambda2 pass straightly through the filter 11i1, it is possible to connect the rays of lambda3, lambda4 to the other fiber 72 by inserting the filter 11i2. When the fibers 6i and 71 are connected, the other filters of the first column are withdrawn from the frame 12 as shown by the dotted lines in the figure.
JP10186578A 1978-08-23 1978-08-23 Photo switch Pending JPS5529812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10186578A JPS5529812A (en) 1978-08-23 1978-08-23 Photo switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10186578A JPS5529812A (en) 1978-08-23 1978-08-23 Photo switch

Publications (1)

Publication Number Publication Date
JPS5529812A true JPS5529812A (en) 1980-03-03

Family

ID=14311883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10186578A Pending JPS5529812A (en) 1978-08-23 1978-08-23 Photo switch

Country Status (1)

Country Link
JP (1) JPS5529812A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62203114A (en) * 1986-03-04 1987-09-07 Nippon Hoso Kyokai <Nhk> Optical switch

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS536132B2 (en) * 1973-01-19 1978-03-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS536132B2 (en) * 1973-01-19 1978-03-04

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62203114A (en) * 1986-03-04 1987-09-07 Nippon Hoso Kyokai <Nhk> Optical switch

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