慢饱和吸收效应对锁模光纤激光器中脉冲传输特性的影响

Impact of the Slow Saturable Absorber on the Ultra-short Pulses' transmitting Charateristics from Mode-locked Fiber Lasers

石墨烯作为饱和吸收体用于锁模光纤激光器,为超短脉冲的研制开辟了一条新途径。本文以耦合非线性薛定谔方程为理论模型,对锁模光纤激光器中超短脉冲产生及传输做了详细的研究,特别是饱和吸收体在脉冲产生及传输过程中对脉冲振幅及中心位置的影响。相关结论将为进一步改善光纤激光器的性能提供一定的理论参考。

Graphene, which is used as the saturable absorber in mode-locking fiber lasers, paves a new way for the ultra-short pulses ＇ generation. Based on the coupled nonlinear Schrodinger equations, the generation and transmitting characteristic of ultra-short pulse are studied in details, especially the influence of the saturable absorber on the pulse amplitude and the center situation. The related results will provide some certain references for a further improvement of the fiber lasers.