发明名称 |
METHOD OF NOISE CANCELLATION IN AN UNPOLARIZED-LASER INSTRUMENT |
摘要 |
A method of noise reduction in a system where polarization mode fluctuations contribute to the noise in a signal is provided. Specifically, a corrected signal is formed by adjusting the relative and overall intensity of the orthogonal polarization components of an unpolarized laser source at a first detector positioned at a first angle with respect to the laser beam axis so that the first detector has the same sensitivity to polarization as a second detector positioned at a second angle with respect to the laser beam axis. This corrected signal is then subtracted from the signal at the second detector which detects a desired signal. |
申请公布号 |
WO2004007017(A2) |
申请公布日期 |
2004.01.22 |
申请号 |
WO2003US22307 |
申请日期 |
2003.07.16 |
申请人 |
RESEARCH ELECTRO-OPTICS, INC. |
发明人 |
SANDBERG, JON, C.;TURCHETTE, QUENTIN, A. |
分类号 |
A61N;G01J1/04;G01J1/08;G01J1/42;G01J4/00;G01N15/02;G01N15/14;G01N21/00 |
主分类号 |
A61N |
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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