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Proceedings Paper

Low Frequency Noise In Ring Laser Gyros
Author(s): H. R. Bilger
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Paper Abstract

Measured power spectral densities SAf of ringlaser beat frequencies Af(t) consist mainly of 1) white noise 2) 1/f or flicker noise 3) 1/f2 noise. Consequently, experimental results can be represented by a power series of the Fourier frequency f, SAf(f) = ho + h_1 f-1+ h_2 f-2 where ho is found to be close to quantum noise, h_1 is usually somewhat above the Gagnepain-Uebersfeld limit, and h_2 appears to vary widely between devices. The most important 1/f noise mode determines the ultimate limit of ring laser performance. All analyzed noise follows the power laws above, independent of the magnitudes of the noise involved.

Paper Details

Date Published: 4 October 1984
PDF: 8 pages
Proc. SPIE 0487, Physics of Optical Ring Gyros, (4 October 1984); doi: 10.1117/12.943248
Show Author Affiliations
H. R. Bilger, Oklahoma State University (United States)


Published in SPIE Proceedings Vol. 0487:
Physics of Optical Ring Gyros
Stephen F. Jacobs; Joseph E. Killpatrick; Virgil E. Sanders; Murray Sargent; Marlan O. Scully; James H. Simpson, Editor(s)

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