Invention Grant
US07522284B2 Optical resonator gyro and method for reducing resonance asymmetry errors
有权
光谐振陀螺和减少谐振不对称误差的方法
- Patent Title: Optical resonator gyro and method for reducing resonance asymmetry errors
- Patent Title (中): 光谐振陀螺和减少谐振不对称误差的方法
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Application No.: US11540771Application Date: 2006-09-29
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Publication No.: US07522284B2Publication Date: 2009-04-21
- Inventor: Glen A. Sanders , Lee K. Strandjord , Tiequn Qiu
- Applicant: Glen A. Sanders , Lee K. Strandjord , Tiequn Qiu
- Applicant Address: US NJ Morristown
- Assignee: Honeywell International Inc.
- Current Assignee: Honeywell International Inc.
- Current Assignee Address: US NJ Morristown
- Agency: Black Lowe & Graham PLLC
- Main IPC: G01C19/72
- IPC: G01C19/72

Abstract:
Methods and apparatus are provided for attenuating rotation rate errors in a resonator gyro. The gyro includes a ring resonator having a hollow core optical fiber coil and optical elements that are selected and/or oriented to reduce stray light that may be present in input light beams introduced to the ring resonator. The resonator has a predetermined mode. One of the optical elements partially transmits a portion of the input light beam to a first end of the fiber coil while partially transmitting a portion of the input light beam to a filter. Light having the predetermined mode is accepted into the first end of the fiber coil, and the filter accepts light of the input light beam having a corresponding mode. Transmission components of the circulating light beams indicates resonance peaks of the counter-propagating directions of the ring resonator.
Public/Granted literature
- US20080079947A1 Optical resonator gyro and method for reducing resonance asymmetry errors Public/Granted day:2008-04-03
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