摘要
报道了利用简化的频率分辨光学开关法快速测量飞秒激光脉冲,并形成反馈,控制液晶空间光调制器,补偿非线性光纤飞秒激光放大器输出脉冲的啁啾,获得了脉冲宽度74fs的变换极限脉冲。
A close-loop chirp compensation system which consists of a simplified frequency-resolved optical gating (FROG) device and liquid crystal spatial light modulator (LC-SLM) is demonstrated. Femtosecond laser pusles are measured by using simplified frequency-resolved optical grating. The phase feedback signals derived from the simplified FROG control the LC-SLM to compensate the chirp of pulses. As a result, 74-fs transform-limited pulses are obtained from nonlinear fiber femtosecond laser amplifier.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2012年第11期8-11,共4页
Chinese Journal of Lasers
基金
国家973计划(2010CB327604、2011CB808101)
国家自然科学基金(60838004、61008015、60978022,61078028)
全国优秀博士学位论文作者专项资金(2007B34)
新世纪优秀人才支持计划(NCET-07-0597)
教育部高等学校博士学科点专项科研基金(20100032120057)资助课题
关键词
激光光学
简化的频率分辨光学开关
啁啾补偿
液晶空间光调制器
非线性光纤放大器
飞秒激光
laser optics
simplified frequency-resolved optical gating
chirp compensation
liquid crystal spatial light modulator
nonlinear fiber amplifier
femtosecond laser