Influence of higher-order dispersion on super-Gaussian optical pulse in the single-mode optical fiber

CAO Jian-qiu; LU Qi-sheng

Based on the nonlinear Schrdinger equation used to describe the normalized amplitude evolution in the fiber,the influence of the third-order dispersion on the transmission characteristics of super-Gaussian optical pulse with different chirps in the fiber is studied numerically.The results show that the peak intensity of super-Gaussian optical pulse becomes higher at the beginning,and the tail experiences a process of strengthening,and then weakening,which are different from Gaussian optical pulse.The results also show that the initial chirps will strengthen the influence of the third-order dispersion,so the method to compensate the influence of dispersion by adjusting the initial chirps should be used carefully in the case that the influence of the third-order dispersion can't be ignored.

Corresponding author: LU Qi-sheng, s203@dlut.edu.cn

1. Institute of Directed Energy Technology, Photoelectic Science and Engineering School, University of National Defense Technology, Changsha 410073, China

Received Date: 2005-01-10

Accepted Date: 2005-11-16

Available Online: 2006-03-25

Abstract: Based on the nonlinear Schrdinger equation used to describe the normalized amplitude evolution in the fiber,the influence of the third-order dispersion on the transmission characteristics of super-Gaussian optical pulse with different chirps in the fiber is studied numerically.The results show that the peak intensity of super-Gaussian optical pulse becomes higher at the beginning,and the tail experiences a process of strengthening,and then weakening,which are different from Gaussian optical pulse.The results also show that the initial chirps will strengthen the influence of the third-order dispersion,so the method to compensate the influence of dispersion by adjusting the initial chirps should be used carefully in the case that the influence of the third-order dispersion can't be ignored.

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Reference (6)

[1]	LINKER A.Modulation induced transient chirping in single frequency lasers[J].IEEE J Q E,1985,21 (6):593～597.
[2]	WU J W,XIA G Q,WU Zh M.Transmission characteristics of superGaussian optical pulse in the single-mode optical fiber[J].Laser Technology,2003,27 (4):342～344,348(in Chinese).
[3]	XIE Y M.A numerical study on propagation properties of optical super-Gaussian shaped pulses in monomode fibers[J].Journal ofGannan Teacher College,2004,25 (3):3～4 (in Chinese).
[4]	FANG Sh Q,ZHAO Sh H,DONG Sh F et al.Analysis of the propagation characteristics of super-Gaussian pulses in the single-mode fibers[J].Journal of Shanxi Institute of Technology,2004,20(2):10～13(in Chinese).
[5]	AGRAWAL G P.Nonlinear fiber optics applications of nonlinear fiber optics[M].Beijing:Publishing House of Electronics Industry,2002.49～51 (in Chinese).
[6]	ZHANG Sh E,SONG W M.Influence of higher-order dispersion on optical pulse propagates along single fiber[J].Journal of North China Electric Power University,2003,30(4):90～92(in Chinese).

[1]	LINKER A.Modulation induced transient chirping in single frequency lasers[J].IEEE J Q E,1985,21 (6):593～597.
[2]	WU J W,XIA G Q,WU Zh M.Transmission characteristics of superGaussian optical pulse in the single-mode optical fiber[J].Laser Technology,2003,27 (4):342～344,348(in Chinese).
[3]	XIE Y M.A numerical study on propagation properties of optical super-Gaussian shaped pulses in monomode fibers[J].Journal ofGannan Teacher College,2004,25 (3):3～4 (in Chinese).
[4]	FANG Sh Q,ZHAO Sh H,DONG Sh F et al.Analysis of the propagation characteristics of super-Gaussian pulses in the single-mode fibers[J].Journal of Shanxi Institute of Technology,2004,20(2):10～13(in Chinese).
[5]	AGRAWAL G P.Nonlinear fiber optics applications of nonlinear fiber optics[M].Beijing:Publishing House of Electronics Industry,2002.49～51 (in Chinese).
[6]	ZHANG Sh E,SONG W M.Influence of higher-order dispersion on optical pulse propagates along single fiber[J].Journal of North China Electric Power University,2003,30(4):90～92(in Chinese).

Influence of higher-order dispersion on super-Gaussian optical pulse in the single-mode optical fiber

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References

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