Ring laser rotational rate sensor

Details Ring laser rotational rate sensor Ring laser rotational rate sensor

H - Electricity

01

S

345/10

H01S 3/083 (2006.01) G01C 19/66 (2006.01)

Patent

CA 1212748

ABSTRACT OF THE DISCLOSURE An improved ring laser rotational rate sensor includes a pair of lasing cavities, each of which is comprised of a non-planar arrangement of four cavity segments. Common gain and biasing media are associated with closely-spaced segments of the two cavities. The non-planar cavity geometry supports only circularly optically polarized lasing modes thereby requiring no intracavity elements for optical biasing and eliminating the need for dithering of mirrors to control optical path length.

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