Increasing the scale factor of a ring laser gyro via spectral hole burning

Mary Salit; Kenneth Salit; Paul E. Bauhahn

doi:10.1117/12.916174

8 February 2012 Increasing the scale factor of a ring laser gyro via spectral hole burning

Mary Salit, Kenneth Salit, Paul E. Bauhahn

Proceedings Volume 8273, Advances in Slow and Fast Light V; 82730H (2012) https://doi.org/10.1117/12.916174
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

We have measured the dispersion for a 632.8nm probe beam in helium neon vapor in the presence of a strong pump. Our measurements show an average index of refraction variation of 1.27 * 10^-6 per GHz. This degree of dispersion could provide up to a 33% scale factor enhancement if implemented in a Ring Laser Gyroscope (RLG), and our measurements indicate enhancements of >100% are possible. With some modifications in this approach, the same dispersion should be achievable in a compact system which can be integrated with existing RLGs at a reasonable cost and without drastic increases in size, weight, or power. Further theoretical modeling is required in order to determine the maximum achievable scale factor enhancement, and the effects on rotational measurement noise and bias stability.

Citation Download Citation

Mary Salit, Kenneth Salit, and Paul E. Bauhahn "Increasing the scale factor of a ring laser gyro via spectral hole burning", Proc. SPIE 8273, Advances in Slow and Fast Light V, 82730H (8 February 2012); https://doi.org/10.1117/12.916174

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