Title :
High-Energy Passively Mode-Locked Raman Fiber Laser Pumped by a CW Multimode Laser
Author :
Qingqiang Kuang ; Li Zhan ; Zhaochang Gu ; Zhiqiang Wang
Author_Institution :
Dept. of Phys. & Astron., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
A passively mode-locked Raman fiber laser based on nonlinear polarization rotation (NPR) with a high nonlinear fiber cavity is proposed and demonstrated. A polarization-independent continuous wave (CW) multimode laser is employed as the pump source in order to avoid stimulated Brillouin scattering generation. This Raman laser generates 890 ps pulses at 1651.3 nm. Under the pump power of 960 mW, the single pulse energy is up to 290.7 nJ with the peak power of 326.7 W. The average output power is up to 110 mW with a conversion efficiency of 11.5%.
Keywords :
Raman lasers; fibre lasers; laser beams; laser mode locking; nonlinear optics; optical pumping; optical rotation; stimulated Brillouin scattering; CW multimode laser; NPR; average output power; conversion efficiency; energy 290.7 nJ; high nonlinear fiber cavity; high-energy passively mode-locked Raman fiber laser; nonlinear polarization rotation; peak power; polarization-independent continuous wave multimode laser; power 110 mW; power 326.7 W; power 960 mW; pump power; pump source; single pulse energy; stimulated Brillouin scattering generation; time 890 ps; wavelength 1651.3 nm; Cavity resonators; Erbium-doped fiber lasers; Laser excitation; Laser mode locking; Optical fiber polarization; Pump lasers; Fiber lasers; Raman fiber laser; mode locked; simulated Raman scattering; simulated Raman scattering (SRS);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2014.2375339
