Open AccessA long ring regenerative cavity for high energy chirped pulse amplification
Author(s) -
C Liu,
Wang Zh,
ZW Shen,
W Zhang,
Hao Teng,
ZY 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.62.094209
Subject(s) - regenerative amplification , chirped pulse amplification , materials science , amplifier , laser , optics , optical amplifier , pulse (music) , pulse duration , bandwidth (computing) , ultrashort pulse , optoelectronics , physics , telecommunications , computer science , cmos , detector
We demonstrate a novel regenerative amplifier with a long ring cavity. Calculation on cavity parameters supports a large mode size. Based on the simulation with the cavity design software, we successfully established a 12 m ring regenerative amplifier. The amplified laser energy up to 20 mJ was obtained under 150 mJ green pump laser at a repetition rate of 10 Hz, corresponding to 13.3% conversion efficiency. The spectral bandwidth of the output pulse was 30 nm, which could support a sub 30 fs pulse duration. After seed injection, the ASE of the amplifier was effectively suppressed.