摘要
无论是在固体还是在光纤放大器中,飞秒的脉冲能量都受到热效应和非线性效应的制约。即使是啁啾脉冲放大(CPA),也难以超越高峰值功率和平均功率的限制。脉冲空间和时间分割放大-合成,有可能打破僵局,产生高重复频率和高脉冲能量;而将高功率光纤放大器中的脉冲进行相干堆积,有可能超越啁啾脉冲放大,得到高于其若干数量级的脉冲能量,同时保持高重复频率。
Either in the solid state or in the fiber amplifier, femtosecond pulse energy is limited by the thermal and nonlinear effects. Chirped pulse amplification （CPA） solely cannot break the barrier of high peak power and average power. Coherent pulse combination, such as the spatially or temporally divided pulse amplification, has the potential to produce higher pulse energies at high repetition rate. Furthermore, coherent pulse stacking from high repetition rate, high power fiber amplifier may even surpass the chirped pulse amplification and produce many order higher pulse energy with high repetition frequency.
出处
《激光与光电子学进展》
CSCD
北大核心
2017年第12期1-10,共10页
Laser & Optoelectronics Progress
基金
国家重大科学研究计划项目(2013CB922401)
国家自然科学基金(61575004
61735001)
科技部重大仪器研发项目(2012YQ14000505-0304)
关键词
激光光学
相干脉冲堆积
相干光束合并
高功率脉冲
laser optics
coherent pulse stacking
coherent beam combination
high power pulses
