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Proceedings Paper

Sensitivity Limits Of An Optical-Fiber Gyroscope
Author(s): Shih-Chun Lin
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Paper Abstract

The optimum sensitivity limits of an optical-fiber gyro are assessed with intrinsic light scattering taken into account. Results reveal that laser wavelength of 1.1 µm is more suitable than 0.633 µm, continuous mode stripping can reduce the scattering effect by one hundredfold, and photon-noise-limited performance can be achieved with the adoption of modulation or heterodyne techniques. Numerical examples show that sensitivities of 0.0078 deg/h at 2 mW laser power and 0.0009 deg/h at 81 mW for X=0.633 µm, and 0.0025 deg/h at 2 mW and 0.0007 deg/h at 14.4 mW for X=1.1 pm may be achieved. These values are better than those of the current ring laser gyros and suggest that, with adequate research and development effort, the optical fiber gyroscope canlpeaviable alternative to ring laser gyros as high-performance rotational rate sensors.

Paper Details

Date Published: 15 December 1978
PDF: 17 pages
Proc. SPIE 0157, Laser Inertial Rotation Sensors, (15 December 1978); doi: 10.1117/12.965480
Show Author Affiliations
Shih-Chun Lin, Naval Research Laboratory (United States)

Published in SPIE Proceedings Vol. 0157:
Laser Inertial Rotation Sensors
Shaoul Ezekiel; G. E. Knausenberger, Editor(s)

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