高功率光子晶体光纤激光器研究进展

光子晶体光纤的出现，为高功率光纤激光器的关键技术-大模区光纤的实现提供了新途径。基于铒镱共掺磷酸盐材料的包层掺杂新结构出现，为实现更加紧凑的光纤激光器提供了可能。常规高功率光纤激光器中的抽运技术，谐振腔技术和相干组束技术也在不断融入高功率光子晶体光纤激光器。高功率光子晶体光纤激光器的调Q和锁模输出也已经实现。

The recent progress in high power photonic crystal fiber laser is introduced. The emergence of photonic crystal fibre offers a new route to the large mode area fiber, which is a key technology in high power fiber laser. The development of Er-Yb codoped phosphate glass has made it possible to construct more compact fibre laser. The novel concepts of pumping, cavity design and coherent beam combination, which originate from the conventional high power fibre lasers, have already been applied in high power photonic crystal fiber lasers. Q-switching and mode-locking operation are also demonstrated.