Accession Number : AD0746375

Title :   Measurement of the Radius of a High-Power Laser Beam near the Focus of a Lens,

Corporate Author : DEFENCE STANDARDS LABS MARIBYRNONG (AUSTRALIA)

Personal Author(s) : Skinner,D. R. ; Whitcher,R. E.

Report Date : 11 OCT 1971

Pagination or Media Count : 2

Abstract : The flux-time waveform from a mechanically chopped laser beam is used to find a Gaussian pattern approximating to the distribution of energy in the beam. The technique, which is insensitive to errors in locating the beam centre, has been used to measure the minimum radius of a carbon dioxide laser beam having a continuous power of 2 kW focused into a region less than 2 mm in diameter. (Author)

Descriptors :   (*COHERENT RADIATION, MEASUREMENT), INFRARED LASERS, GAS LASERS, CARBON DIOXIDE, INTENSITY, AUSTRALIA

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE