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BIAS-CONTROL FOR OPTICAL MACH-ZEHNDER MODULATORS WITH VOLTAGE-INDUCED OPTICAL ABSORPTION
BIAS-CONTROL FOR OPTICAL MACH-ZEHNDER MODULATORS WITH VOLTAGE-INDUCED OPTICAL ABSORPTION
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机译:带电压感应光吸收的光学MACH-ZEHNDER调制器的偏置控制
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摘要
A bias-control circuit that provides operating point control for a Mach-Zehnder modulator experiencing optical absorption at their interferometric arms. The bias control circuit generates compensation signals that are used to counter the thermally induced index shifts as a result of absorption. In addition, an operating point with desirable transmitter characteristics can also be arbitrarily chosen by over-compensating or under-compensating thermal effects.
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