Abstract

Through numerical simulations, we study the effects of weak continuous wave (CW) or weak pulse triggering on the picosecond (ps) pulse pumped supercontinuum (SC) generation. To actively improve the spectral broadening and control both phase and intensity stability of the SC generation, we fix the frequency shift of the trigger pulse (with respect to the pump signal) with different durations and then tune the peak power. Detailed simulation results show that either a weak CW or weak pulse trigger can greatly improve the spectral broadening of SC spectrum generated by a ps pulse pump. Compared to weak CW trigger, a weak femtosecond (fs) pulse or ps pulse trigger can assist the generation of SC with much better coherence and SNR, but precise control of the time delay between the pump and trigger is required.

Effects of two weak continuous-wave triggers on picosecond pulse pumped supercontinuum generation

Chao Huang, Ji Zhu, M. S. Aruna Gandhi, and Qian Li
Appl. Opt. 59(28) 8560-8567 (2020)

Picosecond pulse pumped supercontinuum generation in silicon waveguide with a weak continuous wave trigger

Guangkuo Li and Qian Li
J. Opt. Soc. Am. B 37(6) 1749-1756 (2020)

Effect of a weak CW trigger on optical rogue waves in the femtosecond supercontinuum generation

Qian Li and Xiaoqi Duan
Opt. Express 23(12) 16364-16371 (2015)

Raman soliton at 2 μm in picosecond pumped supercontinuum by a weak CW trigger

Renlai Zhou, Rongle Huang, Qian Li, and H. Y. Fu
Opt. Express 27(9) 12976-12986 (2019)

Investigating the influence of a weak continuous-wave-trigger on picosecond supercontinuum generation

Qian Li, Feng Li, Kenneth K. Y. Wong, Alan Pak Tao Lau, Kevin K. Tsia, and P. K. A. Wai
Opt. Express 19(15) 13757-13769 (2011)