MEMS based ring laser gyroscope with reduced lock-in

• Main Authors: Khalil Diaa A. M, Aljekhedab Fahad, Shebl Salem Ahmed Saeed, Alayed Mrwan, Mohamed Ahmed Khaled Hassan
• Format: Patent
• Language: English
• Published: 21.02.2017
• Subjects: GYROSCOPIC INSTRUMENTS; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

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