发明名称 |
Coherent optical signal processing |
摘要 |
Coherent optical signal processing is performed in a coherent receiver (or diagnostic/testing apparatus) that converts an amplitude and/or angle-modulated optical signal into two electrical signals. A simple receiver can only detect one phase of the signal and only the polarization that is aligned with a local oscillator laser polarization. To detect both phases and both polarizations, two sets of two interferometers, one each with a &pgr;/2 phase shift are required. Coherent optical signal processing methods, apparatus, techniques, etc. are disclosed that include individual components comprising a polarization combiner, a Savart device and photodetection apparatus with substantially reduced temperature and alignment sensitivity operating in optical communication systems and/or subsystems. The various embodiments can be used alone or in such combinations to provide improved coherent optical signal processing in a receiver. |
申请公布号 |
US8204378(B1) |
申请公布日期 |
2012.06.19 |
申请号 |
US20090409030 |
申请日期 |
2009.03.23 |
申请人 |
MARSLAND, JR. ROBERT A.;DORRER CHRISTOPHE J.;TEKTRONIX, INC. |
发明人 |
MARSLAND, JR. ROBERT A.;DORRER CHRISTOPHE J. |
分类号 |
H04J14/06;H04B10/00;H04B10/06 |
主分类号 |
H04J14/06 |
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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