材料科学
光纤激光器
激光器
光子晶体光纤
光学
纤维
光纤
色散位移光纤
光电子学
光纤传感器
复合材料
物理
作者
Yafei Wang,Yeming Zhang,Jiangkun Cao,Liping Wang,Xiulin Peng,Jiuping Zhong,Changsheng Yang,Shanhui Xu,Zhongmin Yang,Mingying Peng
出处
期刊:Optics Letters
[The Optical Society]
日期:2019-04-15
卷期号:44 (9): 2153-2153
被引量:30
摘要
The fiber laser in the range of 900-1000 nm is essential to generate the blue fiber laser through frequency doubling for the laser display, laser underwater communications, and laser lighting. Yet, the well-developed three-level Yb-doped fiber laser can only realize the blue-green fiber laser at around 490 nm, which is far from the pure blue area (450 nm). To further achieve the pure blue fiber laser, the Nd-doped fiber has emerged as a proper choice to realize a shorter wavelength laser (<920 nm) through the F3/24→I9/24 transition of Nd3+. Here, based on the facile "melt-in-tube" (MIT) method, a novel Nd-doped high alumina and yttria glass @ silica glass hybrid fiber was successfully prepared using the Nd:YAG crystal as the precursor core. The crystal core converts to the amorphous glass state after the drawing process, as evidenced by Raman spectra. The gain coefficient at 915 nm of the hybrid fiber reaches 0.4 dB/cm. Further, the laser oscillation at 915 nm with over 50 dB signal-to-noise ratio was realized by a short 3.5 cm gain fiber. Our results indicate that MIT is a feasible strategy to produce novel fiber for generating fiber laser at special wavelengths.
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