129 citations · 344 across the 9 of their papers we have counts for
9 papers
High power orbital-angular-momentum beam generation system based on coherent beam array combination technique
Dong Zhi, Yanxing Ma, Pu Zhou +4
High power orbital-angular-momentum (OAM) beam has dominant advantages in capacity increasing and data receiving for free-space optical communication systems at long distance. Util…
Study on the power scaling and mode instability property in an all-fiber narrow-linewidth tapered fiber amplifier
Long Huang, Zichao Zhou, Chen Shi +3
We develop a high-power narrow-linewidth fiber amplifier based on a tapered Yb-doped fiber. In the experiment, the narrow end of the tapered fiber is used as the input port of both…
Influence of seed power on mode instabilities in high power fiber amplifiers
Rumao Tao, Xiaolin Wang, Pu Zhou +3
We use a semi-analytical model of stimulated thermal Rayleigh scattering to present theoretical study of seed power on mode instability with the presence of photodarkening. The beh…
Study of dopant concentrations on thermal induced mode instability in high power fiber amplifiers
Rumao Tao, Pengfei Ma, Xiaolin Wang +2
Dependence of mode instabilities (MI) on ytterbium dopant concentrations in high power fiber amplifiers has been investigated. It is theoretically shown that, by only varying the f…
Study of wavelength dependence of mode instability based on a semi-analytical model
Rumao Tao, Pengfei Ma, Xiaolin Wang +2
We present theoretical study of wavelength dependence of mode instability (MI) in high power fiber lasers, which employs an improved semi-analytical theoretical model. The influenc…
Influence of core NA on Thermal-Induced Mode Instabilities in High Power Fiber Amplifiers
Rumao Tao, Pengfei Ma, Xiaolin Wang +2
We report on the influence of core NA on thermal-induced mode instabilities (MI) in high power fiber amplifiers. Influence of core NA and V-parameter on MI has been investigated nu…
Polarization Effects on Thermal-Induced Mode Instabilities in High Power Fiber Lasers
Rumao Tao, Pengfei Ma, Xiaolin Wang +2
We present detailed studies of the effect of polarization on thermal-induced mode instability (MI) in ytterbium-doped fiber amplifiers. Based on a steady-state theoretical model, w…
Mitigating of Modal Instabilities in Linearly-Polarized Fiber Amplifiers by Shifting Pump Wavelength
Rumao Tao, Pengfei Ma, Xiaolin Wang +2
We investigated the effct of pump wavelength on the modal instabilities (MI) in high power linearly-polarized Yb-doped fiber amplifiers. We built a novel semi-analytical model to d…
1.3kW monolithic linearly-polarized single-mode MOPA and strategies for mitigating mode instabilities
Rumao Tao, Pengfei Ma, Xiaolin Wang +2
We report on the high power amplification of 1064nm linearly-polarized laser in all-fiber polarization-maintained MOPA, which can operate at output power level of 1.3kW. The main a…