全光纤白光超连续谱实现563 W输出

Generation of 563 W all-fiber white-light supercontinuum source

受限于短脉冲泵浦源高峰值功率和高平均功率之间的矛盾,以及短脉冲泵浦源芯径与光子晶体光纤芯径的较大差异,现有的短脉冲白光超连续谱光源输出在200 W左右。基于短脉冲泵浦源工作频率和脉冲宽度的调节技术、高效的模场匹配技术等,实现了k W级全光纤短脉冲泵浦源的稳定产生,以及短脉冲泵浦源与光子晶体光纤纤芯之间的高效耦合,产生了平均输出功率为563 W的高功率超连续谱光源,为目前该领域公开报道的最高功率。

Supercontinuum spectrum has wide applications in many fields,and it was one of the hottest research directions the past twenty years.However,limited by the mismatch of mode area between pig-tail of amplifier and the photonic crystal fiber and the balance of peak power and output power of the amplifier,the power of white-light supercontinuum is about 200 W.Based on frequency repetition and pulse duration of the amplifier and the high-efficient match of mode area,563 W high power all-fiber white-light supercontinuum source was generated.