- 专利标题： Bias control of nested mach-zehnder modulators for the generation of optical QAM signals
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申请号： US15853439申请日： 2017-12-22
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公开(公告)号： US10326530B2公开(公告)日： 2019-06-18
- 发明人: Christian Rasmussen , Seo Yeon Park , Mehrdad Givehchi
- 申请人： Acacia Communications, Inc.
- 申请人地址： US MA Maynard
- 专利权人： Acacia Communications, Inc.
- 当前专利权人： Acacia Communications, Inc.
- 当前专利权人地址： US MA Maynard
- 代理商 Joseph D'Angelo
- 主分类号： H04B10/54
- IPC分类号： H04B10/54 ; H04B10/50
摘要：
Disclosed are bias control methods for Mach-Zehnder modulators for the generation of optical QAM signals while ensuring correct I/Q polarity of the generated optical QAM signal. One exemplary method involves temporarily offsetting I and Q biases from ideal transmission null bias points while another illustrative method temporarily makes I and Q data streams identical.
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