Ultra-Broadened Supercontinuum Generation in a Novel Dispersion-Flattened and Decreasing Fibre
CHEN Yong-Zhu1, LI Yu-Zhong1, QU Gui1, XU Wen-Cheng2
1Department of Mechatronic Engineering, Guangdong Polytechnic Normal University, Guangzhou 510635
2Institute of Quantum Electronics, South China Normal University, Guangzhou 510631
Ultra-Broadened Supercontinuum Generation in a Novel Dispersion-Flattened and Decreasing Fibre
CHEN Yong-Zhu1;LI Yu-Zhong1;QU Gui1;XU Wen-Cheng2
1Department of Mechatronic Engineering, Guangdong Polytechnic Normal University, Guangzhou 510635
2Institute of Quantum Electronics, South China Normal University, Guangzhou 510631
Abstract： A new approach is introduced to enhance supercontinuum (SC) spectrum in a dispersion-flattened/decreasing fibre with a convex dispersion profile. A flat SC spectrum nearly extending from 1200nm to 2100nm can be generated based on this scheme. It is found that group-velocity dispersions (GVD) and self-phase modulation (SPM) effects are the primary factors for pump pulse compression and SC spectrum generation, stimulated Raman scattering (SRS) effect plays an essential role on the final SC-spectrum bandwidth and flatness, but self-steepening effect can be ignored.
2006, Vol. 23 
