JPS5569122A - Light modulating device - Google Patents

Light modulating device

Info

Publication number
JPS5569122A
JPS5569122A JP14372478A JP14372478A JPS5569122A JP S5569122 A JPS5569122 A JP S5569122A JP 14372478 A JP14372478 A JP 14372478A JP 14372478 A JP14372478 A JP 14372478A JP S5569122 A JPS5569122 A JP S5569122A
Authority
JP
Japan
Prior art keywords
electrodes
optical guide
substrate
way
layer
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
JP14372478A
Other languages
Japanese (ja)
Other versions
JPS5911086B2 (en
Inventor
Juichi Noda
Katsutoshi Kubota
Shintaro Miyazawa
Osamu Mikami
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 JP14372478A priority Critical patent/JPS5911086B2/en
Publication of JPS5569122A publication Critical patent/JPS5569122A/en
Publication of JPS5911086B2 publication Critical patent/JPS5911086B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Optical Integrated Circuits (AREA)

Abstract

PURPOSE:To make possible modulation even to DC voltage components by installing the electrodes for applying modulating electric fields to an optical guide having electro-optic effect on a substrate by way of transparent conductive layers. CONSTITUTION:A substrate 1 provided with an optical guide 3 having electro- optic effect is provided with transparent conductive layers 6a, 6b which are transparent to stripe-form laser light by mixed crystals of In2O3, SnO2, etc. On the layers 6a, 6b are laminated a chromium layer 7 of good adhesion and a metal layer 8 of small specific resistance, whereby electrodes 5a, 5b are formed. DC electric fields are applied to the optical guide 3 by these electrodes 5a, 5b provided to the substrate 1 by way of the conductive layer and not by way of any insulation layer without capacity action of the electrodes 5a, 5b even at the applying of DC voltage. Hence, even for the DC voltage components, the laser light entering from one end of the optical guide 3 is modulated and emits from the other end.
JP14372478A 1978-11-21 1978-11-21 light modulator Expired JPS5911086B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14372478A JPS5911086B2 (en) 1978-11-21 1978-11-21 light modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14372478A JPS5911086B2 (en) 1978-11-21 1978-11-21 light modulator

Publications (2)

Publication Number Publication Date
JPS5569122A true JPS5569122A (en) 1980-05-24
JPS5911086B2 JPS5911086B2 (en) 1984-03-13

Family

ID=15345514

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14372478A Expired JPS5911086B2 (en) 1978-11-21 1978-11-21 light modulator

Country Status (1)

Country Link
JP (1) JPS5911086B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS597335A (en) * 1982-06-22 1984-01-14 トムソン−セエスエフ Optically integrated modulation device independent of polarized state of incident light
JPS604923A (en) * 1983-06-23 1985-01-11 Murata Mfg Co Ltd Optical shutter
JPS608824A (en) * 1983-06-29 1985-01-17 Fujitsu Ltd Optical waveguide
JPH01128036A (en) * 1987-11-13 1989-05-19 Nec Corp Optical switch-modulator
JPH03170909A (en) * 1989-11-29 1991-07-24 Hikari Keisoku Gijutsu Kaihatsu Kk Optical modulating element
US5404412A (en) * 1991-12-27 1995-04-04 Fujitsu Limited Optical waveguide device
US6879737B2 (en) 2000-12-22 2005-04-12 Nec Corporation Optical waveguide device and process for production thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS597335A (en) * 1982-06-22 1984-01-14 トムソン−セエスエフ Optically integrated modulation device independent of polarized state of incident light
JPH0422246B2 (en) * 1982-06-22 1992-04-16 Thomson Csf
JPS604923A (en) * 1983-06-23 1985-01-11 Murata Mfg Co Ltd Optical shutter
JPS608824A (en) * 1983-06-29 1985-01-17 Fujitsu Ltd Optical waveguide
JPH01128036A (en) * 1987-11-13 1989-05-19 Nec Corp Optical switch-modulator
JPH03170909A (en) * 1989-11-29 1991-07-24 Hikari Keisoku Gijutsu Kaihatsu Kk Optical modulating element
US5404412A (en) * 1991-12-27 1995-04-04 Fujitsu Limited Optical waveguide device
US6879737B2 (en) 2000-12-22 2005-04-12 Nec Corporation Optical waveguide device and process for production thereof

Also Published As

Publication number Publication date
JPS5911086B2 (en) 1984-03-13

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