1 December 1991 The use of laser diodes and monomode optical fibre in electronic speckle pattern interferometry
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Abstract
The construction of electronic speckle pattern interferorneters (ESPI) using monomode optical fibre technology and solid state laser diode sources enables the realisation of compact, robust, portable instruments. The wavelength tunability of the diode sources extends the signal processing capability and the measurement techniques. Examples are presented of surface contour measurements in the range 33 μm to 8mm and heterodyne processing of time—averaged vibration fringes to enable determination of amplitude and phase relationships across the object surface.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
H. Atcha, H. Atcha, } "The use of laser diodes and monomode optical fibre in electronic speckle pattern interferometry", Proc. SPIE 1584, Fiber Optic and Laser Sensors IX, (1 December 1991); doi: 10.1117/12.2321946; https://doi.org/10.1117/12.2321946
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