1 April 1991 Laser beam collimation using a phase conjugate Twyman-Green interferometer
Author Affiliations +
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). https://doi.org/10.1117/12.55817
JOURNAL ARTICLE
5 PAGES


SHARE
Back to Top