Open AccessA ring Ti:sapphire regenerative amplifier for high energy chirped pulse amplification
Author(s) -
Wei Zhang,
Hao Teng,
Zhaohua Wang,
Shen Zhong-Wei,
Cheng Liu,
Zhiyi Wei
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.104211
Subject(s) - chirped pulse amplification , materials science , ultrashort pulse , regenerative amplification , optics , pulse (music) , amplifier , laser , gas compressor , energy (signal processing) , sapphire , prism compressor , ti:sapphire laser , femtosecond pulse shaping , ultrafast laser spectroscopy , optoelectronics , optical amplifier , physics , cmos , detector , quantum mechanics , thermodynamics
Based on chirped-pulse amplification technology, a ring cavity Ti:sapphire regenerative amplifier with high output energy is demonstrated. Under the 532 nm pump energy of 33.1 mJ at a repetition rate of 100 Hz, the chirped laser pulse with energy of 9.84 mJ is obtained, corresponding to a slope efficiency of 33.1%. Instead, using the pump laser with energy of 32.0 mJ at a repetition rate of 10 Hz, we also obtain 9.64 mJ pulse energy with a corresponding slope efficiency of 36.8%. By optimizing the dispersion among all optical materials, stretcher and compressor, the shortest pulse has an energy of 6.36 mJ and a pulse width of 59.7 fs, and the energy fluctuation is 1.85 % (RMS) over 4000 shots after the compressor. The performances show that it may pave the way for ultrafast applications and serves as a front stage toward TW even PW laser system with high contrast ratio.