Ring laser gyroscope that does not require mirrors

Details Ring laser gyroscope that does not require mirrors Ring laser gyroscope that does not require mirrors

2007-07-17

2007-07-17

Turner, Samuel A. (Department: 2877)

Optics: measuring and testing

By light interference

Rotation rate

Reexamination Certificate

active

11017446

ABSTRACT:
In an embodiment of a ring laser gyroscope, a hollow bandgap fiber is filled with a gas or material that will generate laser beams within the fiber upon being excited by an energy source. A detector coupled to the fiber detects a standing wave pattern within the fiber, wherein changes in the detected standing wave pattern indicates a corresponding change in the orientation of the fiber.

REFERENCES:
patent: 4013365 (1977-03-01), Vali et al.
patent: 5802236 (1998-09-01), DiGiovanni et al.
patent: 2004/0061863 (2004-04-01), Digonnet
patent: 2004/0263856 (2004-12-01), Willig et al.
Kuriki, Ken et al., Hollow multilayer photonic bandgap fibers for NIR applications, Optic Express, Apr. 19, 2004, pp. 1510-1517, vol. 12, No. 8, MIT, Massachusetts.
Bilger, Hans et al., World's largest ring laser gyro will measure earth's rotation, SpieWeb, pp. 1-7, www.spie.org/web/oer/september/sep96/gyro.html.

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