Collimation testing using photorefractive crystal and temporal coherence

Arun Anand; C. S. Narayanamurthy

doi:10.1117/1.1554405

1 April 2003 Collimation tesing using photorefractive crystal and temporal coherence

Arun Anand, C. S. Narayanamurthy

Optical Engineering, Vol. 42, Issue 4, (April 2003). https://doi.org/10.1117/1.1554405

We report a new method to test the collimation of a laser beam using the diffraction efficiency of photorefractive Bi₁₂TiO₂₀ (bismuth titanium oxide) crystal and the temporal coherence of laser beam in a two-wave mixing geometry. The accuracy of the technique is comparable with that of the established Murty shear interferometric technique and can be improved considerably. Detailed experimental and theoretical analyses are presented.

©(2003) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Arun Anand and C. S. Narayanamurthy "Collimation tesing using photorefractive crystal and temporal coherence," Optical Engineering 42(4), (1 April 2003). https://doi.org/10.1117/1.1554405

Published: 1 April 2003

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