JIA Cai-ping,WANG Chun-can.Numerical simulation of supercontinuum generation based on the active nonlinear fiber[J].Optoelectronics Letters,2021,17(3):149-154 Numerical simulation of supercontinuum generation based on the active nonlinear fiber Author Name Affiliation JIA Cai-ping  Key Laboratory of All Optical Network and Advanced Telecommunication Network, Ministry of Education, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China  WANG Chun-can  Key Laboratory of All Optical Network and Advanced Telecommunication Network, Ministry of Education, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China  Abstract:       The supercontinuum (SC) generation (SCG) based on the active nonlinear fiber has attracted much attention due to its advantages in the energy amplification and spectral broadening of the output pulses. The active step-index single-mode fiber is proposed for the SCG. A flat normal-dispersion profile ranging from 1 240 nm to 2 550 nm can be obtained by tuning the germanium (Ge) concentrationand core size, where the values of the dispersion slope are between ?0.01 ps/nm2/km and 0.05 ps/nm2/km. Furthermore, the output pulse from the 5 m Er-doped normal-dispersion fiber (NDF) with g0=9 m-1 has a peak power of 2.8 kW and a 20 dB spectral bandwidth of 507 nm ranging from 1 262 nm to 1 769 nm by using the 1 550 nm and 1 ps Gaussian pulse with a peak power of 10 kW as the pumping source. Hits: 789 Download times: 0 View Full Text    Download reader