Accession Number : AD0921515

Title :   Laser Wavefront Analyzer Using Sliding Reference Interferometry. Volume II. Subsystem Design Analysis.

Descriptive Note : Final rept. 1 Sep 73-4 Mar 74,

Corporate Author : PERKIN-ELMER CORP NORWALK CT

Personal Author(s) : Skolnick, M. L. ; Gowrinathan, S. ; Harris, J. S. ; Medico, L. J. ; Roberts, F. E.

Report Date : JUL 1974

Pagination or Media Count : 92

Abstract : This final report describes a preliminary design and detailed performance analysis of a laser wavefront analyzer system. The laser wavefront analyzer is a complete diagnostic system for measuring at high frame rate the two-dimensional optical phase and intensity distributions of a high-power laser beam. The complete system includes a high-power laser beam sampler, the diagnostic instrumentation, and a data recording, processing, and display system. The laser wavefront analyzer system is based on the new sliding reference interferometer concept developed and breadboarded during this program. This interferometer is a differential optical phase measurement instrument that is insensitive to the fluctuations in amplitude, polarization, and wavelength, which are characteristic of a high-power laser radiation. Furthermore, because the technique is a differential phase measurement method, the hardware is insensitive to the environmental disturbances that are normally a major problem with two-beam interferometers. Volume I of this report describes the general system design and its expected performance. Volume II contains more detailed analyses of the subsystems and their design. (Author)

Descriptors :   (*LASER BEAMS, PHASE DISTORTION), (*INTERFEROMETERS, DIFFERENTIAL ANALYZERS), (*WAVE ANALYZERS, HIGH POWER), (*DATA PROCESSING, OPTICAL DATA), SAMPLING, WAVEFRONTS, INTENSITY, DISTRIBUTION FUNCTIONS, POLARIZATION, PHASE MEASUREMENT, ALGORITHMS, SIGNAL PROCESSING.

Subject Categories : Lasers and Masers
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE