Recent Improvements In Pulsed Ruby Lasers For Holography

E. Gregor

doi:10.1117/12.953497

14 October 1971 Recent Improvements In Pulsed Ruby Lasers For Holography

E. Gregor

Proceedings Volume 0025, Developments in Holography II; (1971) https://doi.org/10.1117/12.953497
Event: Developments in Holography, 1971, Boston, United States

Abstract

Since the early use of a pulsed ruby laser in holography, significant technical advances have been made recently to increase the coherence length with temperature -controlled multi-etalons and to improve the beam uniformity by growing better ruby crystals. (Ref. 1,2) The pulsewidth obtainable has been reduced to 2.5 nanoseconds without the loss of coherence properties, thus providing shorter holographic exposure times. The ruby laser can be readily multipulsed with pulse separations down to two microseconds. Larger diameter ruby crystals now available have made it possible to obtain higher energy outputs without reaching the damage threshold. Environmental "0" ring sealed enclosure designs have freed today's pulsed ruby laser from the laboratory and have introduced it into the severe industrial environment.

Citation Download Citation

E. Gregor "Recent Improvements In Pulsed Ruby Lasers For Holography", Proc. SPIE 0025, Developments in Holography II, (14 October 1971); https://doi.org/10.1117/12.953497

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