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Title: Short spatial filters with spherical lenses for high-power pulsed lasers

We report possible employment of short spatial filters based on spherical lenses in a pulsed laser source (neodymium glass, 300 J, 1 ns). The influence of the spherical aberration on the quality of output radiation and coefficient of conversion to the second harmonics is studied. The ultra-short aberration spatial filter of length 1.9 m with an aperture of 122 mm is experimentally tested. A considerable shortening of multi-cascade pump lasers for modern petawatt laser systems is demonstrated by the employment of short spatial filters without expensive aspherical optics. (elements of laser systems)
Authors:
; ; ;  [1] ;  [2]
  1. Institute of Applied Physics, Russian Academy of Sciences, Nizhnii Novgorod (Russian Federation)
  2. N.I. Lobachevsky Nizhnii Novgorod State University, Nizhnii Novgorod (Russian Federation)
Publication Date:
OSTI Identifier:
22373688
Resource Type:
Journal Article
Resource Relation:
Journal Name: Quantum Electronics (Woodbury, N.Y.); Journal Volume: 43; Journal Issue: 11; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; FILTERS; HARMONICS; LENSES; NEODYMIUM LASERS; OPTICS; PETAWATT POWER RANGE; PULSES; SPHERICAL CONFIGURATION