Nonlinearity optimization of dissipative-soliton fiber laser for generation of pulses with 350 kW peak power

Abstract

We demonstrate a nonlinearity optimization method by altering distribution of passive fibers in a dissipative-soliton mode-locked fiber laser to level up output parameters. In the numerical simulation, we found that the passive fiber segment after gain fiber characterizes the highest average B-integral among fiber segments. By reducing the length of this fiber section and keeping the total passive fiber length as constant, the output pulse energy can be effectively scaled up while maintaining a short dechirped pulse duration, resulting in boosting peak power. With this method, 37-nJ pulses are generated from a dissipative-soliton mode-locked cladding pumped ytterbium-doped single-mode fiber laser in the experiment. The pulse can be dechirped to 66 fs with 350 kW peak power. Moreover, the pulse pedestal is suppressed by a vector-dispersion compressor.

Editorial: HPLSE special issue on fibres for high-power lasers

“…High pulse energy fiber/solid-slab hybrid picosecond pulse system for material processing on polycrystalline diamonds [4] 5. Nonlinearity optimization of dissipative-soliton fiber laser for generation of pulses with 350 kW peak power [5] 6. 10 watt-level tunable narrow linewidth 1.5 µm allfiber amplifier [6] 7.…”

“…• Large mode area fibres for power scaling Submissions for this special issue cover from the development of active fibres itself to the advances in fibre lasers and fibre amplifiers. Papers described research on high-power ytterbium-doped fibre lasers and amplifiers operating in continuous wave [1,2] , nanosecond regime [3] , picosecond regime [4] and femtosecond regime [5] ; erbiumdoped tunable fibre amplifier [6] ; Raman fibre laser [7,8] and nonlinear amplifier [9] ; high harmonic generation for UV Correspondence to: Y. Wang, Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China. Email: wangyingying@bjut.edu.cn wavelength [10] as well as a review of ytterbium-doped fibres [11] .…”

“…Effectively suppressing stimulated Brillouin scattering (SBS) enables a 400 W level average power high beam quality linearly polarized nanosecond laser [3] . Optimizing the nonlinearity in the dissipative-soliton mode-locked fibre laser allows the scale up of the pulse energy in the sub-100 fs fibre lasers [5] . The thermal effect limiting the power scaling of fibre laser sources with high beam quality has also been investigated by a novel model [2] .…”

“…Special issue content kW-class high power fiber laser enabled by active long tapered fiber [1] Numerical modeling of the thermally induced core laser leakage in high power co-pumped ytterbium doped fiber amplifier [2] Monolithic high-average-power linearly polarized nanosecond pulsed fiber laser with near-diffraction-limited beam quality [3] High pulse energy fiber/solid-slab hybrid picosecond pulse system for material processing on polycrystalline diamonds [4] Nonlinearity optimization of dissipative-soliton fiber laser for generation of pulses with 350 kW peak power [5] 10 watt-level tunable narrow linewidth all-fiber amplifier [6] Power scaling on tellurite glass Raman fibre lasers for mid-infrared applications [7] Investigation on extreme frequency shift in silica fiber-based high-power Raman fiber laser [8] Towards high power nonlinear fiber amplifier [9] Efficient high harmonics generation by enhancement cavity driven with a post-compressed FCPA laser at 10 MHz [10] Development and prospect of high-power doped fibers [11] …”

“…Nonlinearity optimization of dissipative-soliton fiber laser for generation of pulses with 350 kW peak power [5]…”