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All-fiber gyroscope with polarization-holding fiber.
Optics Letters
|September 2, 2009
Summary
This study introduces an all-fiber gyroscope using polarization-holding fiber, achieving a low random-drift coefficient. The fiber gyroscope demonstrates stable bias drift over extended operational periods.
Area of Science:
- Fiber optics
- Inertial navigation systems
- Optical gyroscopes
Background:
- Traditional gyroscopes face limitations in size, cost, and performance.
- The development of fiber optic gyroscopes (FOGs) offers a promising alternative.
- Polarization-holding fiber is crucial for stable FOG performance.
Purpose of the Study:
- To report the development of an all-fiber gyroscope.
- To characterize its performance, focusing on drift and stability.
- To detail the construction and thermal properties of the device.
Main Methods:
- Construction of a gyroscope using exclusively polarization-holding fiber.
- Measurement of random-drift coefficient.
- Assessment of gyro bias drift stability over time.
- Analysis of component thermal dependence.
Main Results:
- Achieved a random-drift coefficient of 5 x 10(-3) degrees per square root hour.
- Demonstrated stable gyro bias drift over hundreds of hours.
- Provided details on device construction and thermal characteristics.
Conclusions:
- The all-fiber gyroscope design utilizing polarization-holding fiber is effective.
- The device exhibits excellent bias stability, suitable for long-term applications.
- Further understanding of thermal effects can optimize performance.
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