发明名称 |
Simplified polarization independent optical sampling using a spatially split waveplate |
摘要 |
A method and apparatus for sampling optical input signal is presented. The apparatus includes a split waveplate for spatially rotating polarization direction of a first portion (for example half, or 50 percent) of the input signal to a first rotated direction and spatially rotating polarization direction of a second portion (for example the other 50 percent) of the input signal to a second rotated direction orthogonal to the first rotated direction. The apparatus further includes a sum frequency generator, for example a PPLN crystal, aligned to the first rotated direction to sample the input signal. The rotation of the two halves of the input signal is achieved using a split half-waveplate.
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申请公布号 |
US2003076496(A1) |
申请公布日期 |
2003.04.24 |
申请号 |
US20010037690 |
申请日期 |
2001.10.24 |
申请人 |
JUNGERMAN ROGER L.;KING RANDALL |
发明人 |
JUNGERMAN ROGER L.;KING RANDALL |
分类号 |
G01J11/00;(IPC1-7):G01J4/00 |
主分类号 |
G01J11/00 |
代理机构 |
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