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Proceedings Paper

Comparison of beam quality parameters of two high-peak power eximer laser beams
Author(s): Sarah Bollanti; Paolo Di Lazzaro; Francesco Flora; Gualtiero Giordano; Tommaso Letardi; Giovanni Schina; Daniele Murra; C. Petrucci; Olivier P. Uteza; Cheng En Zheng
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Paper Abstract

A comparison is made between the beam quality parameter M2 and a new times-diffraction-limit-factor (TDL) for two high peak power XeCl lasers. The laser systems, equipped with unstable resonators, emit beams with different geometrical characteristic and optical quality. The results show that the M2-factor is always larger than the TDL value and this discrepancy increases if the beam is almost diffraction- limited. A novel method to obtain the far-field profile of coherent superGaussian-like beams and a simple technique to estimate the beam angular stability of a pulsed laser are also presented.

Paper Details

Date Published: 4 April 1997
PDF: 5 pages
Proc. SPIE 3092, XI International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (4 April 1997); doi: 10.1117/12.270259
Show Author Affiliations
Sarah Bollanti, ENEA Frascati (Italy)
Paolo Di Lazzaro, ENEA Frascati (Italy)
Francesco Flora, ENEA Frascati (Italy)
Gualtiero Giordano, ENEA (Italy)
Tommaso Letardi, ENEA Frascati (Italy)
Giovanni Schina, ENEA (Italy)
Daniele Murra, Univ. La Sapienza (Italy)
C. Petrucci, ENEA (Italy)
Olivier P. Uteza, Institut de Mecanique des Fluides de Marseille (France)
Cheng En Zheng, ENEA (Italy)

Published in SPIE Proceedings Vol. 3092:
XI International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference
Denis R. Hall; Howard J. Baker, Editor(s)

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