Robuta

https://www.nist.gov/publications/accurate-bias-point-control-electrically-isolated-mach-zehnder-interferometric Accurate bias point control for an electrically isolated, Mach-Zehnder interferometric modulator... Feb 19, 2017 - We describe a new method to keep an electrically isolated Mach-Zehnder electro-optic modulator biased in quadrature in spite of changes in temperature and optic bias point