A. S. Zuev, V. N. Ginzburg, A. A. Kochetkov, A. A. Shaikin, I. V. Yakovlev, “Offner stretcher for the PEARL laser facility”, Kvantovaya Elektronika, 2017, Volume 47, Number 8,Pages <nobr>705

This article is cited in 7 papers

Control of laser radiation parameters

Offner stretcher for the PEARL laser facility

A. S. Zuev^a, V. N. Ginzburg^a, A. A. Kochetkov^a, A. A. Shaikin^a, I. V. Yakovlev^ab

^a Institute of Applied Physics of the Russian Academy of Sciences, Nizhnii Novgorod
^b Lobachevski State University of Nizhni Novgorod

Abstract: As part of upgrading the PEARL laser facility, a new, femtosecond Ti : sapphire master oscillator with a centre wavelength of 910 nm and an emission bandwidth of 40.5 nm has been incorporated into its scheme. To produce a new stretcher matched to the compressor of PEARL, we have carried out a comparative analysis of Martinez and Offner stretcher configurations with spherical and parabolic mirrors. The residual dispersion in the stretcher – compressor system has been evaluated using an unconventional approach based on calculation of a zero-dispersion stretcher. In experiments using the Ti : sapphire laser, a new stretcher in the Offner configuration with spherical mirrors and a compressor, we have obtained pulses of 36-fs duration, which is considerably shorter than the current pulse duration in PEARL.

Keywords: femtosecond pulses, ultra-high power lasers, chirped pulse stretchers and compressors, zero-dispersion stretcher, polyethylene terephthalate.

Received: 02.05.2017