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Efficient single-frequency fiber lasers with novel photosensitive Er/Yb optical fibers

机译:具有新型光敏Er / Yb光纤的高效单频光纤激光器

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Boron- and germanium-doped highly photosensitive cladding is used in a novel design to achieve photosensitive Er/Yb-doped fibers, permitting short, strong gratings (length tl cm, reflectivity >99%) to be written without hydrogenation. The high absorption at 980 nm in Er/Yb fibers permits efficient pump absorption over a short device length, which is ideal for achieving highly efficient single-frequency fiber lasers. Both single-frequency Bragg-grating reflector and distributed-feedback lasers with slope efficiencies of 25% with respect to launched pump power have been realized in such fibers. (C) 1997 Optical Society of America.
机译:掺硼和锗的高光敏包层被用于一种新颖的设计中,以实现掺有光敏Er / Yb的光纤,从而可以在不加氢的情况下写入短而坚固的光栅(长度tl cm,反射率> 99%)。 Er / Yb光纤在980 nm处具有很高的吸收率,因此可以在较短的器件长度内有效地吸收泵浦光,这是实现高效单频光纤激光器的理想选择。在这种光纤中,已经实现了相对于发射泵浦功率具有25%的斜率效率的单频布拉格光栅反射器和分布式反馈激光器。 (C)1997年美国眼镜学会。

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