激光与光电子学进展, 2017, 54 (1): 010002, 网络出版: 2017-01-17
光纤放大网络及其应用研究进展 下载: 716次
Progress of Fiber Amplification Network and Its Application
激光技术 光纤放大网络 相干放大网络 激光粒子加速器 核废料处理 轨道碎片清理 laser technique fiber amplification network coherent amplification network laser-based particle accelerator spent fuel transmutation orbital debris removal
摘要
激光放大系统通常可分为高峰值功率和高平均功率两大类。近年来出现了越来越多同时需要这两种特性的应用, 即要求系统能输出高峰值功率激光, 能高效、高重复频率的工作, 并具有高能量转化效率。针对不断增长的应用需求, 相干放大网络(ICAN)计划基于啁啾脉冲放大、光纤分束放大和相干合束技术解决了高功率激光脉冲在光纤中的非线性损伤等限制功率提升的关键问题, 在获得更高能量和峰值功率的同时避免了光纤中非线性效应导致的波形畸变, 为突破若干限制高峰值功率、高重复频率脉冲激光系统发展的关键障碍提供了解决途径。光纤放大网络的可定标放大特性为许多新的应用提供了解决方案, 如基于激光的粒子加速器、激光驱动核废料处理、地球轨道碎片清理和激光驱动聚变能等。
Abstract
Generally, laser amplification systems can be divided into two types, high peak power laser systems and high average power laser systems. In recent years, there are more and more applications which need the characteristics of the above two systems at the same time. That is to say, the system is required to be able to output high peak power laser and to work efficiently with high repetition frequency, as well as with high energy conversion efficiency. According to the increasing application demand, the coherent amplification network (ICAN) plan solves the key problems limiting power increase, such as nonlinear damage of high power laser pulse in fiber, based on chirped pulse amplification, fiber beam splitting, fiber amplification and coherent beam combination techniques. The waveform distortion caused by the nonlinear effect in fiber is avoided, while the higher energy and peak power are obtained. It offers a solution to break through some key barriers which limit the development of high peak power, high repetition frequency pulse laser system. The scaling amplification characteristics of fiber amplification network provide solutions for many new applications, such as laser-based particle accelerator, laser-driven spent fuel transmutation, orbital debris removal, laser-driven fusion energy and so on.
李宏勋, 张锐. 光纤放大网络及其应用研究进展[J]. 激光与光电子学进展, 2017, 54(1): 010002. Li Hongxun, Zhang Rui. Progress of Fiber Amplification Network and Its Application[J]. Laser & Optoelectronics Progress, 2017, 54(1): 010002.