Honeywell G.m.b.h.

Daniel L Sugarbaker

Jerry L Page

Glen Aaron Sanders

Lee Kevin Strandjord

Clarence E Laskoskie

Andrew W Kaliszek

Rudolf C Dankwort

A control arrangement for minimizing optical leakage in a time-division, multi-stage electro-optical switch by the periodic adjustment of switching voltage levels. An optical detector connected to an idle port of the switch transmits a leakage signal which represents optical leakage in the switch in various configurations of the switch. The leakage signal is filtered by a low pass filter and sampled at a low rate. A processor stores the sampled data and periodically analyzes the data to determine the appropriate changes in the switching voltage levels for each of the stages of the switch to minimize optical leakage. An output circuit connected to the processor and the switch modifies a previously determined base voltage signals for each of the stages to incorporate the voltage level changes and applies the modified signals to the switch in the appropriate time slots.

Method and apparatus for controlling an electro-optical switch

A rectification error reducer for a fiber optic gyroscope, which is an intensity servo or compensator for reducing vibration effects in the optical signals caused by modulation at vibration frequencies induced by the gyroscope operating environment. The vibration effects may be detected in signals from the photodiode output in amplitude form which is used in a control system to null out optical intensity variations at the frequencies of vibration.

Vibration error reduction servo for a fiber optic gyroscope

Fiber optic gyroscope vibration error compensator

Growing community of inventors

Ada, MI, United States of America

Daniel L Sugarbaker