Peng Xiang, Mielke Michael, Booth Timothy
Raydiance Inc., Petaluma, California 94547, USA.
Opt Express. 2011 Jan 17;19(2):923-32. doi: 10.1364/OE.19.000923.
We demonstrate high average power, high energy 1.55 μm ultra-short pulse (<1 ps) laser delivery using helium-filled and argon-filled large mode area hollow core photonic band-gap fibers and compare relevant performance parameters. The ultra-short pulse laser beam-with pulse energy higher than 7 μJ and pulse train average power larger than 0.7 W-is output from a 2 m long hollow core fiber with diffraction limited beam quality. We introduce a pulse tuning mechanism of argon-filled hollow core photonic band-gap fiber. We assess the damage threshold of the hollow core photonic band-gap fiber and propose methods to further increase pulse energy and average power handling.
我们展示了使用充氦和充氩的大模场面积空心光子带隙光纤进行高平均功率、高能量的1.55μm超短脉冲（<1 ps）激光传输，并比较了相关性能参数。超短脉冲激光束——脉冲能量高于7μJ且脉冲序列平均功率大于0.7W——从一根2m长的具有衍射极限光束质量的空心光纤输出。我们介绍了充氩空心光子带隙光纤的脉冲调谐机制。我们评估了空心光子带隙光纤的损伤阈值，并提出了进一步提高脉冲能量和平均功率处理能力的方法。
