Electronic speckle-pattern interferometry compensated for environmentally induced phase noise

Trevor P. Newson; Jose Luis Santos; David A. Jackson

doi:10.1117/12.20303

1 August 1990 Electronic speckle-pattern interferometry compensated for environmentally induced phase noise

Trevor P. Newson, Jose Luis Santos, David A. Jackson

Proceedings Volume 1267, Fiber Optic Sensors IV; (1990) https://doi.org/10.1117/12.20303
Event: The International Congress on Optical Science and Engineering, 1990, The Hague, Netherlands

Abstract

A system employing optical fibres for electronic speckle pattern interferometry is demonstrated. Single mode optical fibres are used to provide a reference beam and illumination of the object. The Michelson interferometer formed by the reference fibre and the fibre illuminating the target is used to compensate for environmentally induced phase noise. This compensation is achieved by using an electronic servo and a piezoelectric phase modulator to lock the Michelson at its quadrature point.

Citation Download Citation

Trevor P. Newson, Jose Luis Santos, and David A. Jackson "Electronic speckle-pattern interferometry compensated for environmentally induced phase noise", Proc. SPIE 1267, Fiber Optic Sensors IV, (1 August 1990); https://doi.org/10.1117/12.20303

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