Paper
9 November 2000 Polarisation-multiplexed and phase-stepped fibre optic shearography using laser diode wavelength tuning
Author Affiliations +
Proceedings Volume 4185, Fourteenth International Conference on Optical Fiber Sensors; 41852O (2000) https://doi.org/10.1117/12.2302239
Event: Fourteenth International Conference on Optical Fiber Sensors, 2000, Venice, Italy
Abstract
A shearography system, that measures two displacement derivative components, using polarisation switching is described. This is achieved using wavelength tuning and highly birefringent optical fibre. Interferometer pathlength imbalance with wavelength tuning provides the phase-stepping.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Roger M. Groves "Polarisation-multiplexed and phase-stepped fibre optic shearography using laser diode wavelength tuning", Proc. SPIE 4185, Fourteenth International Conference on Optical Fiber Sensors, 41852O (9 November 2000); https://doi.org/10.1117/12.2302239
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KEYWORDS
Polarization

Phase shift keying

Semiconductor lasers

Interferometers

Shearography

Wavelength tuning

Mirrors

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