Chin. Phys. Lett.  2006, Vol. 23 Issue (11): 2993-2995    DOI:
Original Articles |
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
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CHEN Yong-Zhu, LI Yu-Zhong, QU Gui et al  2006 Chin. Phys. Lett. 23 2993-2995
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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.

Keywords: 42.65.Tg      42.65.Re      42.65.Dr     
Published: 01 November 2006
PACS:  42.65.Tg (Optical solitons; nonlinear guided waves)  
  42.65.Re (Ultrafast processes; optical pulse generation and pulse compression)  
  42.65.Dr (Stimulated Raman scattering; CARS)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2006/V23/I11/02993
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