High efficiency tandem-pumped fiber amplifier | Zendy

Xiao Hu | Zendy; Leng Jinyong | Zendy; Wuming Wu | Zendy; Wang Xiao-Lin | Zendy; Yanxing Ma | Zendy; Zhou Pu | Zendy; Xiaojun Xu | Zendy; zhao guo-min | Zendy

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High efficiency tandem-pumped fiber amplifier

Author(s) -

Xiao Hu,

Leng Jinyong,

Wuming Wu,

Wang Xiao-Lin,

Yanxing Ma,

Zhou Pu,

Xiaojun Xu,

zhao guo-min

Publication year - 2011

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.60.124207

Subject(s) - materials science , power added efficiency , amplifier , fiber laser , fiber bragg grating , optoelectronics , tandem , dispersion shifted fiber , optics , direct coupled amplifier , laser power scaling , operational transconductance amplifier , fiber , rf power amplifier , operational amplifier , laser , fiber optic sensor , physics , wavelength , cmos , composite material

A 1020 nm fiber laser is designed based on fiber Bragg grating and then its output power is boosted to 590 mW through a two-stage amplifier. A tandem pumping fiber amplifier is constructed with the 1020 nm laser used as a pump source. The output power and the efficiency of the amplifier are measured with different lengths of gain fiber. A 385 mW maximum output power with an 81% slope-efficiency is achieved when the gain fiber is 8.5 m. The output power and the efficiency of a traditional amplifier in which 976 nm diode laser is used as a pump source are also measured. The experimental results indicate that tandem pumping fiber amplifier can achieve a higher efficiency than traditional fiber amplifier.

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