Abstract

The minimum detectable phase shift indicated in recent experimental reports of new linear spectrum-analysis techniques of optical interferometric vibration detection is established as the direct consequence of the 1/f noise voltage in the system components. The dynamic range and inaccuracy predicted by the simple theoretical model presented is in good agreement with experimental measurements. The conclusions of the analysis are compared with experimental reports of heterodyne shot-noise-limited optical systems. With this effective tool the generic class of spectrum-analysis techniques can be analyzed and relatively weighed to assess the effect of noise. This analysis is applicable to optical interferometry in general, although the experiments specifically involved fiber-optic modulators.

© 1992 Optical Society of America

Direct readout of dynamic phase changes in a fiber-optic homodyne interferometer

Wei Jin, Deepak Uttamchandani, and Brian Culshaw
Appl. Opt. 31(34) 7253-7258 (1992)

Integrated principal component analysis denoising technique for phase-sensitive optical time domain reflectometry vibration detection

Atubga David Atia Ibrahim, Shengtao Lin, Ji Xiong, Jialin Jiang, Yun Fu, and Zinan Wang
Appl. Opt. 59(3) 669-675 (2020)

Synchronous phase detection for optical fiber interferometric sensors

I. Jeffrey Bush and Ronald L. Phillips
Appl. Opt. 22(15) 2329-2336 (1983)

Linear measurement of static phase change in optical homodyne interferometers: an analysis

V. S. Sudarshanam
Opt. Lett. 17(9) 682-684 (1992)

Fringe-shifting technique for numerical analysis of time-average holograms of vibrating objects

Karl A. Stetson and William R. Brohinsky
J. Opt. Soc. Am. A 5(9) 1472-1476 (1988)