JPS5642202A - Photocoupling circuit with filter - Google Patents

Photocoupling circuit with filter

Info

Publication number
JPS5642202A
JPS5642202A JP11826379A JP11826379A JPS5642202A JP S5642202 A JPS5642202 A JP S5642202A JP 11826379 A JP11826379 A JP 11826379A JP 11826379 A JP11826379 A JP 11826379A JP S5642202 A JPS5642202 A JP S5642202A
Authority
JP
Japan
Prior art keywords
groove
clad layer
waveguide
deposited
filter
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
JP11826379A
Other languages
Japanese (ja)
Other versions
JPS624682B2 (en
Inventor
Hiroyasu Sugiki
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 JP11826379A priority Critical patent/JPS5642202A/en
Publication of JPS5642202A publication Critical patent/JPS5642202A/en
Publication of JPS624682B2 publication Critical patent/JPS624682B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Integrated Circuits (AREA)

Abstract

PURPOSE:To make possible the selection of photocouplable wavelengths by disposing a dielectric multilayer film filter between two optical guides. CONSTITUTION:The 1st groove is etched in the surface of a substrate 1 and a clad layer 2 is deposited on the surface of the groove, after which this core glass 3a is buried in this groove and a clad layer 2b is deposited after the surface has been made flat, whereby the 1st waveguide is formed. In order to form the 2nd waveguide, such a groove which exposes the clad layer 3a of the 1st waveguide is formed from the back of the substrate, and a multilayer filter film 4 is formed on the surface of this groove; thereafter a clad layer 2c, core glass 3b and clad layer 2d are deposited in the manner similar to that for the 1st optical guide. This is used for branching and coupling of such coupling wavelengths.
JP11826379A 1979-09-14 1979-09-14 Photocoupling circuit with filter Granted JPS5642202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11826379A JPS5642202A (en) 1979-09-14 1979-09-14 Photocoupling circuit with filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11826379A JPS5642202A (en) 1979-09-14 1979-09-14 Photocoupling circuit with filter

Publications (2)

Publication Number Publication Date
JPS5642202A true JPS5642202A (en) 1981-04-20
JPS624682B2 JPS624682B2 (en) 1987-01-31

Family

ID=14732291

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11826379A Granted JPS5642202A (en) 1979-09-14 1979-09-14 Photocoupling circuit with filter

Country Status (1)

Country Link
JP (1) JPS5642202A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS597910A (en) * 1982-07-07 1984-01-17 Fujitsu Ltd Manufacture of reflecting surface of light guide
JPS59160106A (en) * 1983-03-04 1984-09-10 Fujitsu Ltd Optical circuit element
JPS6156306A (en) * 1984-08-28 1986-03-22 Fujitsu Ltd Optical demultiplexer
JPS6360410A (en) * 1986-09-01 1988-03-16 Fujitsu Ltd Optical device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS597910A (en) * 1982-07-07 1984-01-17 Fujitsu Ltd Manufacture of reflecting surface of light guide
JPS59160106A (en) * 1983-03-04 1984-09-10 Fujitsu Ltd Optical circuit element
JPS6156306A (en) * 1984-08-28 1986-03-22 Fujitsu Ltd Optical demultiplexer
JPS6360410A (en) * 1986-09-01 1988-03-16 Fujitsu Ltd Optical device

Also Published As

Publication number Publication date
JPS624682B2 (en) 1987-01-31

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