1 August 2017 Exploring high power, extreme wavelength operating potential of rare-earth-doped silica fiber
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Proceedings Volume 10339, Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers; 103391C (2017) https://doi.org/10.1117/12.2269614
Event: Pacific Rim Laser Damage 2017: Optical Materials for High Power Lasers, 2017, Shanghai, China
Abstract
Ytterbium-doped fiber laser (YDFL) and Thulium doped fiber laser (TDFL) have been two kinds of the most widely studied fiber laser in recent years. Although both silica-based Ytterbium-doped fiber and Thulium doped fiber have wide emission spectrum band (more than 200 nm and 400 nm, respectively), the operation spectrum region of previously demonstrated high power YDFL and TDFL fall into 1060-1100 nm and 1900-2050nm. Power scaling of YDFL and TDFL operates at short-wavelength or long-wavelength band, especially for extreme wavelength operation, although is highly required in a large variety of application fields, is quite challenging due to small net gain and strong amplified spontaneous emission (ASE). In this paper, we will present study on extreme wavelength operation of high power YDFL and TDFL in our group. Comprehensive mathematical models are built to investigate the feasibility of high power operation and propose effective technical methods to achieve high power operation. We have achieved (1) Diodepumped 1150nm long wavelength YDFL with 120-watt level output power (2) Diode-pumped 1178nm long wavelength YDFL operates at high temperature with 30-watt level output power (3) Random laser pumped 2153nm long wavelength TDFL with 20-watt level output power (4) Diode-pumped 1018nm short wavelength YDFL with a record 2 kilowatt output power is achieved by using home-made fiber combiner.
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Pu Zhou, Pu Zhou, Ruixian Li, Ruixian Li, Hu Xiao, Hu Xiao, Long Huang, Long Huang, Hanwei Zhang, Hanwei Zhang, Jinyong Leng, Jinyong Leng, Zilun Chen, Zilun Chen, Jiangmin Xu, Jiangmin Xu, Jian Wu, Jian Wu, Xiong Wang, Xiong Wang, } "Exploring high power, extreme wavelength operating potential of rare-earth-doped silica fiber", Proc. SPIE 10339, Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers, 103391C (1 August 2017); doi: 10.1117/12.2269614; https://doi.org/10.1117/12.2269614
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