High-power All-Fiber components: the missing link for high-power fiber lasers
High-power All-Fiber components: the missing link for high-power fiber lasers
复制标题
DOI：
10.1117/12.548946
复制
发表时间：
2004-06
期刊：
影响因子：
--
通讯作者：
F. Gonthier;L. Martineau;N. Azami;M. Faucher;F. Séguin;D. Stryckman;A. Villeneuve
中科院分区：
文献类型：
--
作者：
F. Gonthier;L. Martineau;N. Azami;M. Faucher;F. Séguin;D. Stryckman;A. Villeneuve
光纤激光器在功率水平上取得了非凡的进步，达到了千瓦级。这些结果是通过高功率激光二极管泵浦的大模面积光纤与体光学耦合实现的。为了实现这些高功率光纤激光器的商业开发，我们展示了几个全光纤组件，它们取代了目前激光器配置中的整体光学接口。这些组件包括带或不带信号光纤馈通的多模熔融光纤束组合器、布拉格光栅和模场适配器。多模光纤用于将多个光纤尾纤抽运二极管耦合到双包层光纤。这样的组合器可以包含为双包层光纤的芯模提供输入或输出的信号光纤。模场适配器执行不同纤芯光纤之间的基模匹配。采用布拉格光栅作为激光谐振腔的反射镜。这些组件展示了200瓦的低损耗和高功率处理能力。它们使真正的高功率单模全光纤激光器的设计变得小巧、坚固和可靠。
Fiber lasers have shown extraordinary progress in power level, reaching the kilowatt range. These results were achieved with large mode area fibers pumped with high power laser diodes coupled with bulk-optics. To enable the commercial development of these high power fiber lasers, we have demonstrated several All-Fiber components, which replace the bulk-optic interface in the present laser configurations. These components include multimode fused fiber bundle combiners with or without signal fiber feed-through, Bragg gratings and mode field adaptors. The multimode fibers are used to couple several fiber pigtailed pump diodes to a double-clad fiber. Such combiners may contain a signal fiber to provide an input or output for the core modes of the double-clad fiber. Mode field adaptors perform fundamental mode matching between different core fibers. Bragg gratings are used as reflectors for the laser cavity. These components exhibit low-loss and high power handling of 200 Watts has been demonstrated. They enable the design of true high power single-mode All-Fiber lasers that will be small, rugged and reliable.