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A simple thermal phase stabilizer for real-time optical fibre holographic interferometry |
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| Authors: | R.K.Y. Chan A.S.K. Cheng W.K. Chow J.B. Brown S.J. Rogers |
| Affiliation: | aRKYC, ASKC, and WKC are in the Physics Department, Hong Kong Baptist College, Hong Kong bJBB and SJR are in the Physics Laboratory, University of Kent, Canterbury, Kent, UK |
| Abstract: | An optical fibre interferometer can be made to phase-stabilize by simply attaching a short length of one arm of the interferometer to a straight copper track and heating the track with an electric current. This feedback thermal stabilization scheme works well even for relatively short fibre lengths and there is no need to treat or unjacket the fibre. A fibre-optic Michelson interferometer stabilized by this method successfully provided object and reference beams for real-time holographic interferometric measurements of the distortion of heated test objects. |
| Keywords: | optical fibres phase stabilization holography |
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