High-power Yb-doped photonic bandgap fiber amplifier at 1150-1200 nm
High-power Yb-doped photonic bandgap fiber amplifier at 1150-1200 nm
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DOI：
10.1364/oe.17.000447
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发表时间：
2009-01-19
期刊：
影响因子：
3.8
通讯作者：
Broeng, J.
中科院分区：
文献类型：
--
作者：
Shirakawa, A.;Maruyama, H.;Broeng, J.
据报道，掺镱实芯光子带隙光纤放大器在镱增益带的长波长边缘工作。在极低增益区域形成低损耗带隙传输窗口，而在带隙之外，大衰减抑制了大增益1030-1100 nm区域中放大自发发射的指数增长。因此，可以实现具有显着效率的无寄生激光、高功率放大。成功获得了 1156 nm 处的 32 W 输出（斜率效率为 66%）和 1178 nm 处的 30 W 输出（斜率效率为 58%）。据我们所知，这些是有源光子带隙光纤以及掺镱光纤激光器在这些波长下产生的最高输出功率。 (C) 2009 美国光学学会
Ytterbium-doped solid-core photonic bandgap fiber amplifiers operating at the long-wavelength edge of the ytterbium gain band are reported. The low-loss bandgap transmission window is formed in the very low gain region, whilst outside the bandgap, large attenuation inhibits the exponential growth of amplified spontaneous emission in the huge-gain 1030-1100 nm region. Hence parasitic-lasing-free, high-power amplification with a marked efficiency is enabled. A 32 W output at 1156 nm with a 66% slope efficiency and 30 W output at 1178 nm with a 58% slope efficiency were successfully obtained. To our knowledge, these are the highest output powers generating from active photonic bandgap fibers, as well as from ytterbium-doped fiber lasers at these wavelengths. (C) 2009 Optical Society of America