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Resonant micro-optic gyro using a short and high-finesse fiber ring resonator
Optics Letters
|December 17, 2015
Summary
A new resonant micro-optic gyro (RMOG) uses a novel integrated scheme and a short fiber ring resonator. This high-performance device achieves a record finesse and bias stability suitable for tactical applications.
Area of Science:
- Optics
- Photonics
- Inertial Navigation
Background:
- Resonant micro-optic gyros (RMOGs) are crucial for high-precision navigation.
- Developing low-loss micro-ring resonators is key for mass production and performance.
Purpose of the Study:
- To propose and experimentally validate a novel hybrid integrated scheme for a high-performance RMOG.
- To establish a new performance record for RMOGs using a short fiber ring resonator and integrated circuitry.
Main Methods:
- Fabrication of a 60 cm long spliceless micro-ring resonator.
- Integration of a signal detecting and processing circuit.
- Experimental demonstration using an innovative open-loop approach.
Main Results:
- Achieved a finesse of 202 for the short fiber ring resonator.
- Demonstrated a theoretical sensitivity better than 0.3°/h.
- Attained an angle random walk coefficient of 0.64°/√h and bias stability below 9.6°/h.
Conclusions:
- The 60 cm long spliceless micro-ring resonator is sufficient for a tactical-grade RMOG.
- The proposed hybrid integrated scheme enables high-performance RMOGs with potential for mass production.
- The experimental results establish a new record for RMOG performance.
