1 April 1991 Laser beam collimation using a phase conjugate Twyman-Green interferometer
Author Affiliations +
Optical Engineering, 30(4), (1991). doi:10.1117/12.55817
Abstract
This paper presents an improved technique for testing laser beam collimation using a phase conjugate Twyman-Green interferometer. The technique is useful for measuring laser beam divergence. It is possible using this technique to detect the defocusing of the order of one micrometer for a well corrected collimating lens. A relation is derived for the defocusing that can be detected by the phase conjugate interferometer.
Ram Prakash Shukla, Mostafa Dokhanian, M. C. George, Putcha Venkateswarlu, "Laser beam collimation using a phase conjugate Twyman-Green interferometer," Optical Engineering 30(4), (1 April 1991). http://dx.doi.org/10.1117/12.55817
JOURNAL ARTICLE
5 PAGES


SHARE
KEYWORDS
Collimation

Interferometers

Phase conjugation

Wavefronts

Helium neon lasers

Mirrors

Beam splitters

RELATED CONTENT

Spatiotemporal frequency-multiplex heterodyne interferometry
Proceedings of SPIE (January 01 1992)
Light-sheet optimization for microscopy
Proceedings of SPIE (March 15 2016)
Resonator performance analysis for a ring resonator FEL
Proceedings of SPIE (June 01 1990)

Back to Top