JPS5685728A - Waveguide type mode converter - Google Patents

Waveguide type mode converter

Info

Publication number
JPS5685728A
JPS5685728A JP16321879A JP16321879A JPS5685728A JP S5685728 A JPS5685728 A JP S5685728A JP 16321879 A JP16321879 A JP 16321879A JP 16321879 A JP16321879 A JP 16321879A JP S5685728 A JPS5685728 A JP S5685728A
Authority
JP
Japan
Prior art keywords
waveguide layer
substrate
waveguide
layer
mode converter
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
JP16321879A
Other languages
Japanese (ja)
Inventor
Atsushi Shibukawa
Morio Kobayashi
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 JP16321879A priority Critical patent/JPS5685728A/en
Publication of JPS5685728A publication Critical patent/JPS5685728A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Integrated Circuits (AREA)
  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)

Abstract

PURPOSE: To obtain a high mode conversion rate with a single mode waveguide layer by providing an intermediate layer between the waveguide layer and a substrate and making the waveguide layer optically anisotropic.
CONSTITUTION: The mode converter consists of a GGG substrate 21, an intermediate layer comprising (Sc, Ga) substituted YIG, a waveguide layer likewise comprising (Sc, Ga) substituted YIG and air 24. Here, if the refractive indexes of the substrate 21, the intermediate layer 22, the waveguide 23 and the air 24 are defined as n1, n2, n3, n4, respectively, there is the relation of n3>n2>n1>n4 among these. The mode conversion rate in the single mode film thickness of the waveguide layer 23 is increased by adding compressing stress owing to the mis-fit of the grating constant from the substrate 21 to the waveguide layer 23 and introducing optical anisotropy into the waveguide layer 23.
COPYRIGHT: (C)1981,JPO&Japio
JP16321879A 1979-12-15 1979-12-15 Waveguide type mode converter Pending JPS5685728A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16321879A JPS5685728A (en) 1979-12-15 1979-12-15 Waveguide type mode converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16321879A JPS5685728A (en) 1979-12-15 1979-12-15 Waveguide type mode converter

Publications (1)

Publication Number Publication Date
JPS5685728A true JPS5685728A (en) 1981-07-13

Family

ID=15769545

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16321879A Pending JPS5685728A (en) 1979-12-15 1979-12-15 Waveguide type mode converter

Country Status (1)

Country Link
JP (1) JPS5685728A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60208730A (en) * 1984-04-02 1985-10-21 Matsushita Electric Ind Co Ltd Faraday rotation element
JPS6249307A (en) * 1985-06-12 1987-03-04 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Magnetooptic waveguide device for propagation mode conversion of device
JPS63113405A (en) * 1986-09-10 1988-05-18 エヌ・ベー・フィリップス・フルーイランペンファブリケン Optical polarization adjustor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5143949A (en) * 1974-08-09 1976-04-15 Thomson Csf Hoshaenerugiino denpamoodoohenkansurusochi

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5143949A (en) * 1974-08-09 1976-04-15 Thomson Csf Hoshaenerugiino denpamoodoohenkansurusochi

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60208730A (en) * 1984-04-02 1985-10-21 Matsushita Electric Ind Co Ltd Faraday rotation element
JPS6249307A (en) * 1985-06-12 1987-03-04 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Magnetooptic waveguide device for propagation mode conversion of device
JPS63113405A (en) * 1986-09-10 1988-05-18 エヌ・ベー・フィリップス・フルーイランペンファブリケン Optical polarization adjustor

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