Department of Applied Physics, Cornell University, Ithaca, New York 14853, USA.
Opt Lett. 2013 Jun 1;38(11):1942-4. doi: 10.1364/OL.38.001942.
Theoretical and experimental investigations of the behavior of normal-dispersion fiber lasers with nonlinear optical loop mirrors are presented. The use of a loop mirror causes the laser to generate relatively long, flat-topped pulses. The pulse energy can be high, but the pulse duration is limited to greater than 300 fs. Experimentally, 8 nJ pulses that can be dechirped to 340 fs duration are obtained. The laser is a step toward an all-fiber, environmentally stable design.
本文对带有非线性光环形镜的常规色散光纤激光器的行为进行了理论和实验研究。使用环形镜会使激光产生相对较长的平顶脉冲。脉冲能量可以很高，但脉冲持续时间限于大于 300fs。在实验中，获得了可展宽至 340fs 脉冲持续时间的 8nJ 脉冲。该激光器朝着全光纤、环境稳定设计迈出了一步。
