Generating 2 micron continuous-wave ytterbium-doped fiber laser-based optical parametric effect

Abstract

We report an efficient method for generating a 2 micron laser based on an optical parametric oscillator (OPO). It uses a long piece of a newly developed double-clad ytterbium-doped fiber (YDF), which is obtained by doping multi-elements of ZrO 2 , CeO 2 and CaO in a phosphoalumina-silica glass as a gain medium. The efficient 2 micron laser generation is successful due to the presence of partially crystalline Yb-doped ZrO 2 nano-particles that serve as a nonlinear material in a linear cavity configuration and high watt-level pump power. Stable self-wavelength double lasing at 2122 nm with an efficiency of 7.15% is successfully recorded. At a maximum pump power of 4.1 W, the output power is about 201 mW.

Spectral property optimization for a narrow-band-filtered superfluorescent fiber source

“…Narrow-line fiber lasers have a range of applications, such as coherent beam combining (CBC) [1,2], spectral beam combining (SBC) [3,4] and optical frequency conversion [5,6]. Due to nonlinear effects, such as stimulated Brillouin scattering, stimulated Raman scattering (SRS), transverse model instabilities and self-phase modulation (SPM)-induced spectral broadening effects, it is challenging to realize the highpower and narrow-band outputs simultaneously.…”