Accession Number:

AD0743051

Title:

Density Inhomogeneity in a Laser Cavity Due to Energy Release,

Descriptive Note:

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s):

• Fuhs,Allen E.

Report Date:

1972-05-01

Pagination or Media Count:

11.0

Abstract:

Density gradients, which refract laser light within the cavity, degrade beam quality. In addition to wall influences and viscous effects which cause density gradients, there is another mechanism. This mechanism, which is due to wakes and compression waves from heat vibration energy to translation and rotation addition in a supersonic stream, appears to have been overlooked. This appropriate equation is stated and discussed. A semigraphical solution procedure is outlined. Contours of constant density have been calculated for circular and rectangular cavities. Graphs of the isodensity contours are given. Author

Descriptors:

• (*GAS LASERS
• SUPERSONIC FLOW)
• ENERGY
• DENSITY
• HEATING
• NOZZLE GAS FLOW
• EFFICIENCY

Subject Categories:

• Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE