Effects of compensative fiber’s parameters on self-similar pulse compression

Abstract

Abstract:

The pulse compression is affected by group-velocity dispersion parameter (GVD parameter) and nonlinear parameter of the anomalous-dispersion compensative fiber, which is used in self-similar pulse compression technique. This effect was studied with numerical calculation based on nonlinear Schrodinger (NLS) equation. The results show that compensative fiber’s GVD parameters affect compression factor and peak power of compressed pulse periodically. Pulse energy concentrates, then disperses, and then concentrates in every period. As the magnitude of GVD parameter increases, period interval becomes longer and more energy diverts. Every time when energy concentrates, the pulse width approaches the compression limit. Optimal fiber length is a decreasing function of the magnitude of GVD parameter, but it has nothing to do with nonlinear parameter. On the other hand, the increase of nonlinear parameter reduces compression factor, which is bad for pulse compression. By optimizing the parameters of the compensative fiber, pulse width can attain its limit and high quality pulse is obtained.

Key words: nonlinear optics, self-similar pulse compression, nonlinear Schrodinger equation, compensative fiber, dispersion decreasing fiber, constant dispersion fiber

LV Hua, ZHANG Qiao-Fen. Effects of compensative fiber’s parameters on self-similar pulse compression[J]. J4, 2009, 26(5): 607-612.

References

[1]Barenblatt G I. Scaling, Self-similarity, and Intermediate Asymptotics
[M]. Cambridge: Cambridge University Press, 1996

[2]Fermann M E, Kruglov V I, Thomsen B C, et al. Self-similar propagation and amplification of parabolic pulse in optical fibers
[J]. Phys. Rev. Lett., 2000, 84(26): 6010-6013

[3]Kruglov V I, Peacock A C, Harvey J D, et al. Self-similar propagation of parabolic pulses in normal-dispersion fiber amplifiers
[J]. J. Opt. Soc. Am. B, 2002,19(3):461-469

[4]Finot C, Pitois S, Millot G. Regenerative 40 Gbit/s wavelength converter based on similatiton generation
[J]. Opt. Lett., 2005, 30:1776-1778

[5]Finot C, Millot G, Billet C, et al. Experimental generation of parabolic pulses via Raman amplification in optical fiber
[J]. Opt. Express, 2003(11):1547-1552

[6]Finot C, Millot G, Dudley J M. Asymptotic characteristics of parabolic similariton pulses in optical fiber amplifiers
[J]. Opt. Lett., 2004,29(21):2533-2535

[7]Finot C, Millot G. Synthesis of optical pulses by use of similaritons
[J]. Opt. Express, 2004(12):5104-5109

[8]Toshihiko H, Masataka N. Parabolic pulse generation by use of a dispersion-decreasing fiber with normal group-velocity dispersion
[J]. Opt. Lett., 2004, 29(5):498-500.

[9]Feng Jie, Xu Wencheng, Zhang qiaofen, et al. Self-similar pulse evolution in optical fibers
[J]. Laser & Optoelectronics Progress(激光与光电子学进展), 2006, 43(1): 26-36

[10]Fan Liming, Li Shiying, Wang Shijie, et al. Fiber-grating optical pulse compression
[J]. Acta Optica Sinica(光学学报), 1991, 11(5):385-389

[11]Broderick N G R, Tavemer D, Richardson D J, et al. Optical pulse compression in fiber Bragg gratings
[J]. Phys. Rev. Lett., 1997(79):4566-4569

[12]Yang Guangqiang, Song Jien,et al. Numerical simulation of the all-fiber compact compressor based on cascaded uniform fiber gratings
[J]. Chinese Journal of Quantum Electronics(量子电子学报), 2005, 22(2):282-285

[13]Mollenauer L F, Stolen R H, Gordon J P. Extreme picoseconds pulse narrowing by means of soliton effect in single-mode optical fibers
[J]. Opt. Lett., 1983, 8(5):189-291

[14]Zhao Chunmei, Yang xingyu. Effect of initial chirp on picosecond pulse compression in fibers with slowly decreasing dispersion
[J]. Chinese Journal of Quantum Electronics(量子电子学报), 2005, 22(3):464-467

[15]Agrawl G P. Nonlinear Fiber Optics
[M], New York: Academic Press, 1995

[16]Zhang Qiaofen, Xu Wencheng, Feng Jie, et al. Propagation properties of self-similar pulse in a dispersion-decreasing fiber with normal group-velocity dispersion
[J]. Acta Photonica Sinica(光子学报), 2008, 37(1):30-34

[17]Wu Zaihua, Cao Wenhua. Dispersion-decreasing fiber and its applications
[J]. Laser & Infrared(激光与红外), 2004, 34(6):408-411

[18]Zhang Qiaofen. Generation of excellent self-similar pulse in a dispersion-decreasing fiber with normal group-velocity dispersion
[J]. Laser & Infrared(激光与红外), 2008, 38(1):59-62