发明名称 |
Polarization controller using spatial filtering |
摘要 |
A method for improving polarization extinction ratio includes changing a polarization state of a light beam, wherein the light beam thereafter includes spatially non-uniform polarization states, and spatially filtering the light beam to filter out the spatially non-uniform polarization states. Spatial filtering involves filtering a wavefront of the light beam by passing the light beam through a polarization-maintaining single-mode fiber, or filtering an amplitude of the light beam by passing the light beam through an aperture.
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申请公布号 |
US2005031245(A1) |
申请公布日期 |
2005.02.10 |
申请号 |
US20030637276 |
申请日期 |
2003.08.08 |
申请人 |
LAW JOANNE Y.;JOHNSTONE ERIC S. |
发明人 |
LAW JOANNE Y.;JOHNSTONE ERIC S. |
分类号 |
G01J4/00;G02B6/34;G02F1/01;(IPC1-7):G02B6/00 |
主分类号 |
G01J4/00 |
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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