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JPS57155518A - Elastic strain type optical active element - Google Patents

Elastic strain type optical active element

Info

Publication number
JPS57155518A
JPS57155518A JP4116181A JP4116181A JPS57155518A JP S57155518 A JPS57155518 A JP S57155518A JP 4116181 A JP4116181 A JP 4116181A JP 4116181 A JP4116181 A JP 4116181A JP S57155518 A JPS57155518 A JP S57155518A
Authority
JP
Japan
Prior art keywords
elastic strain
optical waveguide
betam
betae
type optical
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
JP4116181A
Other languages
Japanese (ja)
Inventor
Koichi Wakazono
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP4116181A priority Critical patent/JPS57155518A/en
Publication of JPS57155518A publication Critical patent/JPS57155518A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/011—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  in optical waveguides, not otherwise provided for in this subclass

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Integrated Circuits (AREA)

Abstract

PURPOSE:To lower a driving voltage, to increase a modulation speed, and to reduce the size of an element by realizing the thin-film structure of the element, and utilizing periodic static elastic strain. CONSTITUTION:On an Y-plate X-propagation lithium niobate substrate 1, a metal diffusion type optical waveguide 2 is formed, and on it, a reed screen type silicon dioxide film 3 is formed. Consequently, residual stress generated when a reed screen type pattern 3 is formed and a difference in coefficient of thermal expansion between the material of the optical waveguide 2 and that of the pattern 3 are utilized to generate periodic static elastic strain on the optical waveguide 2. Therefore, when the Bragg's phase condition ¦betaE-betaM¦=2pi/lambda where betaE and betaM are the propagation constants of mode TE and TM is satisfied, conversion between the modes TE and TM is performed. Further, an aluminum electrode 4 is provided and applied with a voltage to vary a mode conversion rate.
JP4116181A 1981-03-19 1981-03-19 Elastic strain type optical active element Pending JPS57155518A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4116181A JPS57155518A (en) 1981-03-19 1981-03-19 Elastic strain type optical active element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4116181A JPS57155518A (en) 1981-03-19 1981-03-19 Elastic strain type optical active element

Publications (1)

Publication Number Publication Date
JPS57155518A true JPS57155518A (en) 1982-09-25

Family

ID=12600693

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4116181A Pending JPS57155518A (en) 1981-03-19 1981-03-19 Elastic strain type optical active element

Country Status (1)

Country Link
JP (1) JPS57155518A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0255270A2 (en) * 1986-07-28 1988-02-03 Nippon Telegraph and Telephone Corporation Single mode optical waveguide
EP0259933A2 (en) * 1986-09-10 1988-03-16 Philips Patentverwaltung GmbH Optical polarisation controller with waveguide structure
US4900112A (en) * 1987-06-29 1990-02-13 Nippon Telegraph And Telephone Corporation Integrated optical device and method for manufacturing thereof
JPH07500431A (en) * 1992-02-21 1995-01-12 コニンクリジケ　ピーティーティー　ネーダーランド　エヌ　ブィー optical switching device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0255270A2 (en) * 1986-07-28 1988-02-03 Nippon Telegraph and Telephone Corporation Single mode optical waveguide
US4781424A (en) * 1986-07-28 1988-11-01 Nippon Telegraph And Telephone Corporation Single mode channel optical waveguide with a stress-induced birefringence control region
EP0259933A2 (en) * 1986-09-10 1988-03-16 Philips Patentverwaltung GmbH Optical polarisation controller with waveguide structure
US4900112A (en) * 1987-06-29 1990-02-13 Nippon Telegraph And Telephone Corporation Integrated optical device and method for manufacturing thereof
JPH07500431A (en) * 1992-02-21 1995-01-12 コニンクリジケ　ピーティーティー　ネーダーランド　エヌ　ブィー optical switching device
US5574808A (en) * 1992-02-21 1996-11-12 Koninklijke Ptt Nederland N.V. Optical switching device

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