Laser & Optoelectronics Progress, Volume. 49, Issue 6, 60605(2012)
High Efficiency Inband Core-Pumped Erbium/Ytterbium-Codoped Fiber Amplifier
A cladding-pumped single-mode ErYb-codoped fiber amplifier which is seeded by two lasers at 1535 nm and 1064 nm is designed to suppress the harmful Yb emission. An inband core-pumped fiber amplifier is constructed with the 1535 nm laser. The output power and spectrum of the amplifier are measured with different launched pump power. A 1.22 W maximum output power with 58.4% slope efficiency is achieved when the gain fiber is 5 m long, the seed laser power is 80 mW, and the 1535 nm pump power is 2.1 W. The output power and efficiency of a traditional amplifier whose pump source is 976 nm laser diode are also measured. The experimental results indicate that inband-pumped fiber amplifier can achieve higher efficiency than traditional fiber amplifiers.
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Wu Wuming, Yang Weiqiang, Xiao Hu, Zhou Pu, Guo Shaofeng, Xu Xiaojun, Wu Yi. High Efficiency Inband Core-Pumped Erbium/Ytterbium-Codoped Fiber Amplifier[J]. Laser & Optoelectronics Progress, 2012, 49(6): 60605
Category: Fiber Optics and Optical Communications
Received: Mar. 13, 2012
Accepted: --
Published Online: May. 4, 2012
The Author Email: Wuming Wu (treewwm@gmail.com)