Automated optimization of the temporal duration of a 21 fs, 4 mJ CPA laser system with high B-integral

Author

Canova, L. ; Chen, X. ; Mercier, B. ; Albert, O. ; Martens, R. Lopez ; Forget, N. ; Oksenhendler, T.

Author_Institution

Lab. d´´Opt. Appl., Centre Nat. de la Rech. Sci., Palaiseau, France

fYear

2009

fDate

14-19 June 2009

Firstpage

1

Lastpage

1

Abstract

An acousto-optic dispersive filter (AOPDF) is used to pre-compensate spectral narrowing and to measure (DazScope software from Fastlite) the spectral phase induced by SPM and then compensate for the measured phase distortion. The paper presents the results of SHG spectra versus chirp traces together with the extracted local chirp function for four states: initial state at low energy, coarsely optimized pulse at low energy, pulse at high energy with the same phase settings, finely optimized pulse at high energy. The change in energy dramatically changes the spectral phase of the amplified pulses. Simulations of the amplification in the laser chain with the software MIRO corroborate this result.

Keywords

acousto-optical filters; chirp modulation; high-speed optical techniques; optical harmonic generation; scanning probe microscopy; CPA laser system; SHG spectra; acousto-optic dispersive filter; energy 4 mJ; high B-integral; laser chain amplification; local chirp function; phase distortion; phase settings; pulse energy; spectral narrowing; spectral phase; time 21 fs; Chirp; Dispersion; Distortion measurement; Filters; Laser noise; Phase distortion; Phase measurement; Pulse amplifiers; Scanning probe microscopy; Software measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on

Conference_Location

Munich

Print_ISBN

978-1-4244-4079-5

Electronic_ISBN

978-1-4244-4080-1

Type

conf

DOI

10.1109/CLEOE-EQEC.2009.5196345

Filename

5196345