Microgyroscope

Details Microgyroscope Microgyroscope

2008-10-06

2010-06-29

Chowdhury, Tarifur (Department: 2886)

Optics: measuring and testing

By light interference

Rotation rate

Reexamination Certificate

active

07746475

ABSTRACT:
A new high-performance, compact microgyroscope is implemented using a microlaser such as a microsphere laser or a microdisc laser that can be easily reduced in size. The microgyroscope includes a pumping unit for inputting pumping light for optical pumping, at least one microsphere or microdisc for oscillating a laser beam by performing optical pumping using light received from the pumping unit, an output coupler for receiving the oscillated laser beam from the microsphere or microdisc, and a photodetector for calculating a beat frequency due to interference between beams output from the output coupler to measure rotation. The pumping unit and the output coupler are constructed using a tapered optical fiber.

REFERENCES:
patent: 2007/0153289 (2007-07-01), Yilmaz et al.
“Highly efficient hybrid fiber taper coupled microsphere laser”; Authors: Ming Cai, et al.; Optics Letters, vol. 26, No. 12, Jun. 15, 2001 (pp. 884-886).
“Modeling and Design of a Novel Miniaturized Integrated Optical Sensor for Gyroscope Systems”; Authors: Mario N. Armenise, et al.; Journal of Lightwave Technology, vol. 19, No. 10, Oct. 2001 (pp. 1476-1494.

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