发明名称 |
Photothermal optical switch and variable attenuator |
摘要 |
An optical device which utilizes a photothermal optical effect to achieve switching or attenuation includes a waveguide defined by a waveguide core and a surrounding cladding, wherein the polymer waveguide core includes a region consisting of a photothermally responsive material having an absorption coefficient at a switch wavelength or attenuation wavelength that is higher than an absorption coefficient at a signal wavelength. Switching devices include an optical splitter circuit having a branch that includes the photothermally responsive material, and either a multiplexer for introducing light at the switch wavelength into the optical circuit or a light source focused at the photothermally responsive material. Attenuating devices include a Mach-Zehnder type interferometer having a branch that includes the photothermally responsive material and either a multiplexer for introducing light at the attenuation wavelength into the optical circuit or a light source focused at the photothermally responsive material.
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申请公布号 |
US6493478(B1) |
申请公布日期 |
2002.12.10 |
申请号 |
US20000727004 |
申请日期 |
2000.11.30 |
申请人 |
CORNING INCORPORATED |
发明人 |
DEROSA MICHAEL E.;GUERMEUR CELINE C.;LOGUOV STEPHEN L.;MORONI MARC;VIDIELLA GUILHEM M. |
分类号 |
G02F1/01;G02F1/061;G02F1/225;G02F1/313;(IPC1-7):G02B6/26;G02B6/42 |
主分类号 |
G02F1/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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