Title :
Simple and efficient 2-TW Optical Parametric Chirped Pulse Amplifier
Author :
Pawel Wnuk;Yuriy Stepanenko;Czeslaw Radzwicz
Author_Institution :
Institute of Experimental Physics, Warsaw University, Ho?a 69, 00-681 Warsaw, Poland
fDate :
6/1/2009 12:00:00 AM
Abstract :
In this paper, a simple and efficient 2-TW peak power Non-collinear Optical Parametric Chirped Pulse Amplifier (NOPCPA) pumped by a commercial frequency doubled Nd:YAG laser is presented. As a source of seed pulses we used a home made Ti:Sapphire oscillator with 100 nm bandwidth. The pulses were stretched to 1 ns in a stretcher of Martinez configuration. The stretcher introduced significant temporal aberrations which were compensated in a separate pulse shaper equipped with a liquid crystal spatial light modulator. The pulses were amplified in two stages: preamplifier and power amplifier. The overall efficiency of the system was approx. 10% - the highest value for such a system reported so far. Power stability of 2% RMS was obtained, limited mainly by pump beam energy fluctuations.
Keywords :
"Pulse amplifiers","Nonlinear optics","Stimulated emission","Chirp","Optical pulses","Semiconductor optical amplifiers","Optical amplifiers","Optical harmonic generation","Optical pumping","Optical pulse shaping"
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Print_ISBN :
978-1-4244-4079-5
DOI :
10.1109/CLEOE-EQEC.2009.5196438
