JPS5289943A - Photo directional coupler - Google Patents

Photo directional coupler

Info

Publication number
JPS5289943A
JPS5289943A JP677376A JP677376A JPS5289943A JP S5289943 A JPS5289943 A JP S5289943A JP 677376 A JP677376 A JP 677376A JP 677376 A JP677376 A JP 677376A JP S5289943 A JPS5289943 A JP S5289943A
Authority
JP
Japan
Prior art keywords
directional coupler
photo
photo directional
coupling
degree
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
JP677376A
Other languages
Japanese (ja)
Inventor
Naoya Uchida
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 JP677376A priority Critical patent/JPS5289943A/en
Publication of JPS5289943A publication Critical patent/JPS5289943A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Integrated Circuits (AREA)

Abstract

PURPOSE:To increase the degree of coupling and improve coupling characteristics by providing a thin layer on the coupling part surface of optical waveguides.
JP677376A 1976-01-23 1976-01-23 Photo directional coupler Pending JPS5289943A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP677376A JPS5289943A (en) 1976-01-23 1976-01-23 Photo directional coupler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP677376A JPS5289943A (en) 1976-01-23 1976-01-23 Photo directional coupler

Publications (1)

Publication Number Publication Date
JPS5289943A true JPS5289943A (en) 1977-07-28

Family

ID=11647481

Family Applications (1)

Application Number Title Priority Date Filing Date
JP677376A Pending JPS5289943A (en) 1976-01-23 1976-01-23 Photo directional coupler

Country Status (1)

Country Link
JP (1) JPS5289943A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62172308A (en) * 1986-01-27 1987-07-29 Nippon Telegr & Teleph Corp <Ntt> Waveguide for separating and coupling polarized light

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62172308A (en) * 1986-01-27 1987-07-29 Nippon Telegr & Teleph Corp <Ntt> Waveguide for separating and coupling polarized light

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