Spectral amplitude and phase control in a CPA laser system using adaptive optics in the stretcher

Author

Albert, O. ; Waenman, V. ; Felix, Corinne ; Cheriaux, G. ; Chambaret, J.P. ; Queneuille, J. ; Mourou, Gerard

Author_Institution

Lab. d´Opt. Appl., Ecole Polytech., Palaiseau, France

fYear

2000

fDate

10-15 Sept. 2000

Abstract

Summary form only given. As pulse duration is decreasing, it becomes mandatory to take into account the residual spectral phase that can´t be corrected in CPA laser systems. Up to date CPA systems are well corrected for chirp (/spl phi//sub 2/) and /spl phi//sub 3/. The remaining spectral phase defect reduces the amplified pulse contrast. Furthermore, gain narrowing in a Ti:sapphire amplifier limits the pulse duration to 30 fs. By controlling both spectral amplitude and phase we can reach pulses as short as 16 fs.

Keywords

adaptive optics; chirp modulation; laser beams; laser variables measurement; optical modulation; optical pulse compression; optical pulse generation; phase control; pulse measurement; sapphire; solid lasers; titanium compounds; 16 fs; 30 fs; Al/sub 2/O/sub 3/:Ti; CPA laser system; Ti:sapphire amplifier; adaptive optics; amplified pulse contrast; chirp; chirped pulse amplifier; gain narrowing; laser systems; phase; phase control; pulse duration; residual spectral phase; spectral amplitude; spectral phase defect; stretcher; Adaptive optics; Phase control;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe, 2000. Conference Digest. 2000 Conference on

Conference_Location

Nice

Print_ISBN

0-7803-6319-1

Type

conf

DOI

10.1109/CLEOE.2000.909766

Filename

909766