Pressure recovery devices for supersonic COIL lasers

Robert F. Walter; Robert A. O'Leary

doi:10.1117/12.144528

23 April 1993 Pressure recovery devices for supersonic COIL lasers

Robert F. Walter, Robert A. O'Leary

Proceedings Volume 1980, Iodine Lasers and Applications; (1993) https://doi.org/10.1117/12.144528
Event: Iodine Lasers and Applications, 1992, Bechyne Castle, Czechoslovakia

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.

Citation Download Citation

Robert F. Walter and Robert A. O'Leary "Pressure recovery devices for supersonic COIL lasers", Proc. SPIE 1980, Iodine Lasers and Applications, (23 April 1993); https://doi.org/10.1117/12.144528

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available