Title :
High-Power All-Fiber Single-Frequency Erbium–Ytterbium Co-Doped Fiber Master Oscillator Power Amplifier
Author :
Xiaolei Bai ; Quan Sheng ; Haiwei Zhang ; Shijie Fu ; Wei Shi ; Jianquan Yao
Author_Institution :
Coll. of Precision Instrum. & Optoelectron. Eng., Tianjin Univ., Tianjin, China
Abstract :
We report herein an all-fiber single-frequency master oscillator power amplifier (MOPA) at 1550 nm with Er/Yb-codoped active fiber and wavelength-stabilized 976-nm LD pump source. A pump-limited maximum continuous-wave output power of 56.4 W was achieved under the pump power of 150 W, with corresponding slope efficiency being 37.0%. Via the self-heterodyne method, the evolution of spectrum linewidth during the amplification was investigated for the high-power MOPA-based single-frequency fiber laser. The linewidth and relative intensity noise at the maximum output power are 4.21 kHz and -110 dBm/Hz, respectively.
Keywords :
erbium; laser beams; laser noise; optical fibre amplifiers; optical pumping; ytterbium; erbium-ytterbium co-doped fiber master oscillator power amplifier; high-power all-fiber single-frequency fiber master oscillator power amplifier; power 56.4 W to 150 W; pump power; pump-limited maximum continuous-wave output power; relative intensity noise; self-heterodyne method; slope efficiency; spectrum linewidth; wavelength 976 nm to 1550 nm; wavelength-stabilized LD pump source; Erbium; Optical fiber amplifiers; Optical fiber communication; Optical fiber polarization; Power amplifiers; Power generation; Power measurement; Fiber laser; Laser amplifiers; Single-frequency laser; all fiber; erbium-ytterbium; erbium???ytterbium; fiber laser; laser amplifiers; single frequency laser;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2015.2490484
