外文题目: Yb3+-doped silica glass rod with high optical quality and low optical attenuation prepared by modified sol-gel technology for large mode area fiber
作者: Wang, Shikai; Xu, Wenbin; Wang, Fan; Lou, Fengguang; Zhang, Lei; Zhou, Qinling; Chen, Danping; Feng, Suya; Wang, Meng; Yu, Chunlei; Hu, Lili
刊名: Opt. Mater. Express
年: 2017 卷: 7 期: 6 页： 2012--2022
英文关键词:

AMPLIFIER; LASER; POWER
英文摘要:
We report on a modified sol-gel method combined with an innovative high-temperature melting technology for the preparation of Yb3+-doped silica glass rods (circle divide 3-18 mm) with high optical quality and low background loss. We prepared Al-Yb, Al-P-Yb, Al-FYb, and Al-P-F-Yb doped silica glass rods for large mode area fibers (LMA) with a high laser power and low core numerical aperture (0.02). We were able to successfully solve the doping homogeneity problem caused by the volatility of P and F. More importantly, we developed a purification technology and successfully reduced the optical attenuation to 0.05 dB/m. An Al-Yb co-doped silica photonic crystal fiber (PCF) with a core diameter of 100 mu m was fabricated for laser behaviour characterization. In the continuous wavelength laser measurement, a laser output slope efficiency of 83.3% was obtained from the fabricated PCF. To our knowledge, this is the highest slope efficiency derived from a Yb3+-doped silica PCF prepared by a non-CVD method. In the pulse amplification laser experiment, an average amplified power of 310 W with a peak power of 1.5 MW and a pulse duration of 21 ps were achieved.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1364/OME.7.002012


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