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 deviceInfo
- 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
Links
Landscapes
- 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.
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)
| 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 |
-
2004
- 2004-01-02 SG SG200400042-8A patent/SG144702A1/en unknown
Patent Citations (3)
| 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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