18348169. RESONATOR OPTICAL GYROSCOPES WITH DUAL BROADBAND LIGHT SOURCES (HONEYWELL INTERNATIONAL INC.)
RESONATOR OPTICAL GYROSCOPES WITH DUAL BROADBAND LIGHT SOURCES
Organization Name
Inventor(s)
Tiequn Qiu of Glendale AZ (US)
Glen A. Sanders of Scottsdale AZ (US)
Matthew Wade Puckett of Phoenix AZ (US)
RESONATOR OPTICAL GYROSCOPES WITH DUAL BROADBAND LIGHT SOURCES
This abstract first appeared for US patent application 18348169 titled 'RESONATOR OPTICAL GYROSCOPES WITH DUAL BROADBAND LIGHT SOURCES
Original Abstract Submitted
A gyroscope comprises first and second light sources that emit first and second beams with broadband spectrums, and a waveguide arrangement that communicates with the light sources. A resonator communicates with the waveguide arrangement to receive the beams. A first circulator is coupled to the waveguide arrangement between the first light source and the resonator. A second circulator is coupled to the waveguide arrangement between the second light source and the resonator. A first rate detector communicates with the resonator through the first circulator, and a second rate detector communicates with the resonator through the second circulator. The rate detectors produce rate measurements based on a detected resonance frequency shift of the beams in the resonator caused by rotation of the gyroscope. Outputs of the rate detectors are used to calculate a rotation rate that is corrected for errors due to a time varying pathlength change in the resonator.