Ring mirror optical rotation sensor

An optical rotation sensor includes a Fabry Perot laser having an active gain medium for generating first and second light beams, a closed optical path through which the first and second light beams counter-propagate and first and second mirrors coupled to respective ends of the closed optical path....

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Bibliographische Detailangaben
Hauptverfasser:	Khalil Diaa Abdel Maged, Abdel Salam Kamal Mohammed Khalil, Mohamed Ahmed Khaled Hassan, Alarifi Faris Saad, Afifi Abdelrahman Emad El-Deen Hussien Mohammed, Al-Otaibi Mohammed Jary, Shalaby Mohamed Yehia
Format:	Patent
Sprache:	eng
Schlagworte:	GYROSCOPIC INSTRUMENTS MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING
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Beschreibung
Zusammenfassung:	An optical rotation sensor includes a Fabry Perot laser having an active gain medium for generating first and second light beams, a closed optical path through which the first and second light beams counter-propagate and first and second mirrors coupled to respective ends of the closed optical path. The first minor is a ring mirror having a complex valued reflectivity that varies with a rotation rate of a frame within which the optical rotation sensor is placed. A detector is coupled to an output of the Fabry Perot laser to measure an output intensity thereof.