期刊
OPTICS LETTERS
卷 35, 期 14, 页码 2340-2342出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.35.002340
关键词
-
类别
资金
- NCCR Quantum Photonics (NCCR QP)
- Swiss National Science Foundation (SNSF)
- U.S. Air Force Office of Scientific Research (USAFOSR) [FA9550-09-1-0233, FA9550-05-1-0180]
We present an amplification medium for optical parametric chirped-pulse amplification that allows for ultrabroad-band gain in a collinear configuration. Our approach is based on aperiodic quasi-phase-matching (QPM). For the first demonstration of this method in a mid-IR optical parametric chirped-pulse amplifier, we chose a QPM grating design with a linear chirp of its associated spatial frequencies. The resulting 7.4-mm-long, aperiodically poled Mg:LiNbO3 amplification crystal has a chirp rate of kappa' = -250 cm(-2) and provides gain over the 800 nm bandwidth centered at 3.4 mu m. We were able to generate pulses as short as 75 fs and the pulse energy at the output of the optical parametric amplifier before compression was 1.5 mu J. Low thermal load on the amplification medium allows for operation at a high repetition rate, 100 kHz in our case, and high average power limited only by the available pump power. (C) 2010 Optical Society of America
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据