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Proceedings Paper

Optical fiber electronic speckle-pattern surface contouring using 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 August 1990
PDF: 8 pages
Proc. SPIE 1267, Fiber Optic Sensors IV, (1 August 1990); doi: 10.1117/12.20284
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. 1267:
Fiber Optic Sensors IV
Ralf Th. Kersten, Editor(s)

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