SG144702A1 - An optical switch device and method for forming an optical switch device - Google Patents

An optical switch device and method for forming an optical switch device

Info

Publication number
SG144702A1
SG144702A1 SG200400042-8A SG2004000428A SG144702A1 SG 144702 A1 SG144702 A1 SG 144702A1 SG 2004000428 A SG2004000428 A SG 2004000428A SG 144702 A1 SG144702 A1 SG 144702A1
Authority
SG
Singapore
Prior art keywords
liquid crystal
crystal cell
waveguide core
forming
optical switch
Prior art date
Application number
SG200400042-8A
Inventor
Takehisa Ishida
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to SG200400042-8A priority Critical patent/SG144702A1/en
Publication of SG144702A1 publication Critical patent/SG144702A1/en

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  • Optical Integrated Circuits (AREA)

Abstract

A DEVICE AND METHOD FOR FORMING AN OPTICAL SWITCH DEVICE A device and method for forming an optical switch device comprises forming a waveguide core having a longitudinally extending axis, and forming a cladding layer surrounding the waveguide core. A liquid crystal cell is mounted in the waveguide core, the liquid crystal cell being positioned across the waveguide core and extending in a plane at a predetermined angle to the longitudinal axis of the waveguide core. A pair of electrodes is then formed in the cladding layer, one electrode being located above the liquid crystal cell and the other electrode in the pair being located below the liquid crystal cell. The liquid crystal cell is utilized as a modulator of refractive index. An applied electric field to the liquid crystal cell changes the refractive index of the cell. The change of refractive index causes a total reflection at the boundary surface between the waveguide core and the liquid crystal cell. The liquid crystal cell thereby acts as a switching element.
SG200400042-8A 2004-01-02 2004-01-02 An optical switch device and method for forming an optical switch device SG144702A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SG200400042-8A SG144702A1 (en) 2004-01-02 2004-01-02 An optical switch device and method for forming an optical switch device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SG200400042-8A SG144702A1 (en) 2004-01-02 2004-01-02 An optical switch device and method for forming an optical switch device

Publications (1)

Publication Number Publication Date
SG144702A1 true SG144702A1 (en) 2008-08-28

Family

ID=39710846

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200400042-8A SG144702A1 (en) 2004-01-02 2004-01-02 An optical switch device and method for forming an optical switch device

Country Status (1)

Country Link
SG (1) SG144702A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5044712A (en) * 1990-06-29 1991-09-03 The United States Of America As Represented By The Secretary Of The Air Force Waveguided electrooptic switches using ferroelectric liquid crystals
US20020041726A1 (en) * 2000-10-09 2002-04-11 Thackara John I. Planar waveguide switch and optical cross-connect
EP1363158A1 (en) * 2002-05-17 2003-11-19 Nippon Sheet Glass Co., Ltd. Waveguide type liquid crystal optical switch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5044712A (en) * 1990-06-29 1991-09-03 The United States Of America As Represented By The Secretary Of The Air Force Waveguided electrooptic switches using ferroelectric liquid crystals
US20020041726A1 (en) * 2000-10-09 2002-04-11 Thackara John I. Planar waveguide switch and optical cross-connect
EP1363158A1 (en) * 2002-05-17 2003-11-19 Nippon Sheet Glass Co., Ltd. Waveguide type liquid crystal optical switch

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