Compact resonator fiber optic gyroscopes

Details Compact resonator fiber optic gyroscopes Compact resonator fiber optic gyroscopes

2009-05-14

2011-11-29

Toatley, Gregory J (Department: 2877)

Optics: measuring and testing

By light interference

Rotation rate

Reexamination Certificate

active

08068233

ABSTRACT:
Substantially symmetric RFOG configurations for rotation rate sensing using two input/output coupling components. Configurations are disclosed where optical coupling components handles both input and output lightwaves. Reducing the number of input/output coupling components while maintaining a substantially symmetric configuration for the CW and CCW beam reduces losses, prevents realization of bias errors due to asymmetric light paths in the resonator, and produces better signal to noise performance. In addition, the invention discloses systems integrating multiple functions into compact micro-optic devices that are easier to fabricate and package, leading to compact RFOGs with reduced cost and improved manufacturability.

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