Accession Number : ADD003402

Title :   Recirculation or Stirred Reactor Flow Laser.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Osgerby,Ian T

Report Date : 28 Dec 1976

Pagination or Media Count : 5

Abstract : A laser which obtains lasing action from gases flowing into and out of a laser cavity is substantially improved by causing the flowing gases to traverse a strongly recirculating flow field. The recirculation of exhaust flow gases into the incoming flow gases, in a controlled recirculation region, leads substantially uniform distribution of gas composition, chemical and thermodynamic states, pressure, temperature, density and refractive index through the cavity. Recirculation flow fields are generated by opposed jets, behind baffles, in swirling flow, in spheres when jet velocities are high and in duct flows where a high momentum, high velocity jet is surrounded by a co-flowing low momentum low velocity stream.

Descriptors :   *Gas lasers, *Gas flow, *Recirculation, *Patents, Laser cavities, Turbulence, Jet flow

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE