Dispersion equalized ring laser gyroscope

Details Dispersion equalized ring laser gyroscope Dispersion equalized ring laser gyroscope

H - Electricity

01

S

345/10

H01S 3/083 (2006.01) G01C 19/64 (2006.01) G01C 19/66 (2006.01) G02F 1/09 (2006.01)

Patent

CA 1189600

DISPERSION EQUALIZED RING LASER GYROSCOPE Abstract A ring laser gyroscope system uses a non-planar path and non-depolarizing Faraday bias means to achieve four-frequency differential operation. The use of the non-planar path elimi- nates the crystal rotator normally used to provide reciprocal bias and therefore eliminates scattering surfaces and a major cause of thermal sensitivity. The non-depolarizing Faraday means, such as a thin glass slab having a component of magnetic field along the optic axis of the laser, is used to reduce the corresponding thermal sensitivity of the traditional Faraday bias element normally implemented by a crystal such as quartz. Eliminating these major sources of drift then allows higher- order sources of drift to be corrected. Zeeman splitting of the laser gain medium is used to provide an equal amount of dispersion to each of the two counter-travelling waves of each wave pair, thus eliminating small amounts of drift due to the different phase shifts produced in the propagating waves by the gain medium.

384267

Affiliated with

Also associated with

Rating

Dispersion equalized ring laser gyroscope does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dispersion equalized ring laser gyroscope, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dispersion equalized ring laser gyroscope will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1328137