发明名称 |
Broadband polarization switching |
摘要 |
A polarization switching apparatus has a first birefringent polarizer formed as a composite prism and disposed to direct incident light of a first polarization along a first optical path and light of a second polarization along a second optical path, wherein the second optical path is oblique to the first optical path. A beam redirector is disposed to redirect the first optical path from the first birefringent polarizer toward an input face of a second birefringent polarizer; wherein the second birefringent polarizer is also formed as a composite prism and is disposed to combine incident light of the first and second polarizations onto a common output path. A shutter apparatus is actuable to selectively block light of the first polarization or light of the second polarization from the input face of the second birefringent polarizer. |
申请公布号 |
US8830581(B2) |
申请公布日期 |
2014.09.09 |
申请号 |
US201213461879 |
申请日期 |
2012.05.02 |
申请人 |
Corning Incorporated |
发明人 |
Dewa Paul G;Dunn Michael M;Mack Stephen K;McMaster Brian Monroe;Michaels Robert L;Michaloski Paul Francis |
分类号 |
G02B27/28;G02B5/30;G01N21/33;G01N21/21;G02B6/27 |
主分类号 |
G02B27/28 |
代理机构 |
|
代理人 |
Short Svetlana |
主权项 |
1. A polarization switching apparatus comprising:
a first birefringent polarizer formed as a composite prism and disposed to direct incident light of a first polarization along a first optical path and light of a second polarization along a second optical path, wherein the second optical path is oblique with respect to the first optical path; a beam redirector disposed to redirect the first optical path from the first birefringent polarizer toward an input face of a second birefringent polarizer; wherein the second birefringent polarizer is also formed as a composite prism and is disposed to combine incident light of the first and second polarizations onto a common output path; and a shutter apparatus that is actuable to selectively block light of the first polarization or light of the second polarization from the input face of the second birefringent polarizer. |
地址 |
Corning NY US |