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Proceedings Paper

Electronic speckle pattern surface contouring using optical fibres and wavelength modulation of laser diodes
Author(s): Ralph P. Tatam; Jeremy C. Davies; Clive H. Buckberry; Julian D. C. Jones
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Paper Abstract

The incorporation of laser diodes and monomode fibre optics into an Electronic Speckle Pattern Interferometer (ESPI) has led to the development of a novel holographic surface contouring system. Height contours are obtained by switching between two laser wavelengths. Contour intervals from 0.5-5 mm have been generated by modulating the injection current of a single laser diode source and are demonstrated on an automotive disc brake hub.

Paper Details

Date Published: 1 September 1990
PDF: 6 pages
Proc. SPIE 1314, Fibre Optics '90, (1 September 1990); doi: 10.1117/12.21989
Show Author Affiliations
Ralph P. Tatam, Cranfield Institute of Technology (United Kingdom)
Jeremy C. Davies, Rover Group plc (United Kingdom)
Clive H. Buckberry, Rover Group plc (United Kingdom)
Julian D. C. Jones, Heriot-Watt Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 1314:
Fibre Optics '90

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