Manipulating refractive index, homogeneity and spectroscopy of Yb$^{3+}$-doped silica-core glass towards high-power large mode area photonic crystal fiber lasers

• Published in: Optics express Vol. 25; no. 21
• Main Authors: Fan, Wang, Lili, Hu, Wenbin, Xu, Meng, Wang, Suya, Feng, Jinjun, Ren, Lei, Zhang, Danping, Chen, Nadège, Ollier, Guojun, Gao, Chunlei, Yu, And Shikai, Wang
• Format: Journal Article
• Language: English
• Published: Optical Society of America - OSA Publishing 16.10.2017
• Subjects: Physics; (160.5690) Rare-earth-doped materials; (160.6060) Solgel; OCIS codes: (160.2290) Fiber materials; (160.4760) Optical properties; (160.6030) Silica

Output power scaling of single mode large mode area (LMA) photonic crystal fiber (PCF) amplifiers urgently requires the low refractive index of Yb 3+-doped silica glasses whilst maintaining high optical homogeneity. In this paper, we report on a promising alternative Yb 3+ /Al 3+ /F-/P 5+-co-doped s...