JPS6463934A - Waveguide type optical switch - Google Patents

Waveguide type optical switch

Info

Publication number
JPS6463934A
JPS6463934A JP22014187A JP22014187A JPS6463934A JP S6463934 A JPS6463934 A JP S6463934A JP 22014187 A JP22014187 A JP 22014187A JP 22014187 A JP22014187 A JP 22014187A JP S6463934 A JPS6463934 A JP S6463934A
Authority
JP
Japan
Prior art keywords
optical
loss
waveguide
coupling
compound
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
JP22014187A
Other languages
Japanese (ja)
Inventor
Koji Ishida
Hiroaki Inoue
Naoki Kayane
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP22014187A priority Critical patent/JPS6463934A/en
Publication of JPS6463934A publication Critical patent/JPS6463934A/en
Pending legal-status Critical Current

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  • Optical Integrated Circuits (AREA)

Abstract

PURPOSE:To miniaturize the titled switch and to decrease the insertion loss, by placing an optical waveguide for coupling which has been constituted of a material whose optical loss is smaller than that of an optical switch part, between the optical switch part and an optical fiber for coupling. CONSTITUTION:As for a switch part for switching a light beam, an electrooptical crystal such as lithium niobate, etc., whose induced refractive index variation by external force is large, or a compound semiconductor crystal such as gallium arsenide, indium phosphorus, etc., is used, and as for a bend waveguide part for coupling with an optical fiber, a quartz compound glass material whose loss is low is used. In such a way, by constituting the optical switch part and the bend waveguide part, of each different material, the structure of each optical waveguide can be designed and manufactured optimumly. According to this constitution, the number of connecting parts between parts increase by one part, but since the quartz glass compound optical waveguide and the quartz compound optical fiber can be coupled with an extremely small loss by a welding method, no problem is generated at all for practical use.
JP22014187A 1987-09-04 1987-09-04 Waveguide type optical switch Pending JPS6463934A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22014187A JPS6463934A (en) 1987-09-04 1987-09-04 Waveguide type optical switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22014187A JPS6463934A (en) 1987-09-04 1987-09-04 Waveguide type optical switch

Publications (1)

Publication Number Publication Date
JPS6463934A true JPS6463934A (en) 1989-03-09

Family

ID=16746540

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22014187A Pending JPS6463934A (en) 1987-09-04 1987-09-04 Waveguide type optical switch

Country Status (1)

Country Link
JP (1) JPS6463934A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003241008A (en) * 2002-02-14 2003-08-27 Sumitomo Electric Ind Ltd Optical module
US6876782B2 (en) 2001-12-25 2005-04-05 Nec Corporation Integrated type optical waveguide device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6097319A (en) * 1983-11-01 1985-05-31 Matsushita Electric Ind Co Ltd Optical waveguide element

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6097319A (en) * 1983-11-01 1985-05-31 Matsushita Electric Ind Co Ltd Optical waveguide element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6876782B2 (en) 2001-12-25 2005-04-05 Nec Corporation Integrated type optical waveguide device
JP2003241008A (en) * 2002-02-14 2003-08-27 Sumitomo Electric Ind Ltd Optical module

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