Photoacoustic Oscillator Sensors

R. M. Langdon; D. L. Dowe

doi:10.1117/12.941091

14 October 1987 Photoacoustic Oscillator Sensors

R. M. Langdon, D. L. Dowe

Proceedings Volume 0798, Fiber Optic Sensors II; (1987) https://doi.org/10.1117/12.941091
Event: Fourth International Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, The Hague, Netherlands

Abstract

The operation of optically excited micro-resonator sensors is described in which internal feedback provided by an optical interferometer induces self-oscillation. Unmodulated light passes to the sensor through an optical fibre to maintain the oscillation, and modulated light is returned down the fibre with a frequency characteristic of the stress applied to the resonator.

Citation Download Citation

R. M. Langdon and D. L. Dowe "Photoacoustic Oscillator Sensors", Proc. SPIE 0798, Fiber Optic Sensors II, (14 October 1987); https://doi.org/10.1117/12.941091

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