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Proceedings Paper

Pressure recovery devices for supersonic COIL lasers
Author(s): Robert F. Walter; Robert A. O'Leary
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Paper Abstract

The basic challenge in the design of a pressure recovery system for a supersonic gas laser arises from the fact that the cavity pressure is quite low: 50 - 70 torr for a CO2 gasdynamic laser (GDL) and as low as 4 torr for a chemical oxygen-iodine laser (COIL) system. The purpose of the pressure recovery system is to increase the pressure from its value in the supersonic cavity to one which allows the laser gas to be exhausted into the atmosphere. Two types of pressure recovery systems which are of primary interest for supersonic gas lasers are diffusers and ejectors. In this paper we derive some performance limits and examine the characteristics of both types of devices.

Paper Details

Date Published: 23 April 1993
PDF: 7 pages
Proc. SPIE 1980, Iodine Lasers and Applications, (23 April 1993); doi: 10.1117/12.144528
Show Author Affiliations
Robert F. Walter, W.J. Schafer Associates, Inc. (United States)
Robert A. O'Leary, W.J. Schafer Associates, Inc. (United States)

Published in SPIE Proceedings Vol. 1980:
Iodine Lasers and Applications

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