MEMS based Ring Laser Gyroscope with Reduced Lock-in

A ring laser gyroscope (RLG) includes moveable minors and a Micro-Electro-Mechanical Systems (MEMS) actuator coupled to the moveable minors to cause a respective displacement thereof that induces a phase modulation on counter-propagating light beams relative to one another. The induced phase modulat...

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Bibliographic Details
Main Authors SHEBL SALEM AHMED SAEED, MOHAMED AHMED KHALED HASSAN, ALJEKHEDAB FAHAD, KHALIL DIAA A.M, ALAYED MRWAN
Format Patent
LanguageEnglish
Published 04.04.2013
Subjects
GYROSCOPIC INSTRUMENTS
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
NAVIGATION
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
SURVEYING
TESTING
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Summary:A ring laser gyroscope (RLG) includes moveable minors and a Micro-Electro-Mechanical Systems (MEMS) actuator coupled to the moveable minors to cause a respective displacement thereof that induces a phase modulation on counter-propagating light beams relative to one another. The induced phase modulation creates an optical path difference between the counter-propagating light beams corresponding to a virtual rotation that reduces the lock-in of the RLG.
Bibliography:Application Number: US201213630792