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采用分步傅里叶方法数值求解耦合的非线性薛定谔方程,模拟了双脉冲在光子晶体光纤中的非线性传输过程,计算和分析了离散效应和脉冲内拉曼散射对信号脉冲传输和压缩的影响.结果表明,当中心波长为800 nm的泵浦脉冲在反常色散区进行泵浦,而中心波长为740 nm的信号脉冲在正常色散区入射,在群速度色散,自相位调制及交叉相位调制联合作用下,信号脉冲在传输过程中不仅被压缩且存在最佳光纤长度.离散效应不仅导致脉冲压缩比的减小和压缩后峰值功率的降低,而且导致脉冲所需最佳光纤长度的增加以及压缩后的脉冲呈现不对称,还发现,脉冲内拉曼散射有利于改善脉冲压缩质量.

参考文献

[1] Knight J C,Birks T A,et al.All-silica single-mode optical fiber with photonic crystal cladding[J].Opt.Lett.,1996,21:1547-1549.
[2] Birks T A,Knight J C,Russel P St J,et al.Endlessly single-mode photonic crystal fiber[J].Opt.Lett.,1997,22(13):961-963.
[3] Wang Qingyue,Hu Minglie,Chai Lu.Progress in nonlinear optics with photonic crystal fibers[J].Chinese Journal of Lasers(中国激光),2006,33(1):57-66 (in Chinese).
[4] Gao Jian,Zhang xia,Zhou Huili,et al.Dispersion and nonlinear property in dispersion flattened photonic crystal fiber[J].Chinese Journal of Quantum Electronics(量子电子学报),2009,26(5):602-606 (in Chinese).
[5] Li Aiping,Ji Yanjun,Wang Anquan.Effect of pump wavelength on femtosecond pulse compression in photoniccrystal fibers[J].Chinese Journal of Quantum Electronics(量子电子学报),2010,27(3):325-330(in Chinese).
[6] Cheng Chunfu,Wang Xiaofang,et al.Nonlinear copropagation of two optical pulses of different frequencies in photonic crystal fibers[J].Applied Physics B,2005,80:291-294.
[7] Agrawal G P,Baldeck P L,Alfano,R R.Temporal and spectral effects of cross-phase modulation on copropagating ultrashort pulses in optical fibers[J].Phys.Rev.A,1989,40(9):5063-5072.
[8] Schreiber T,Andersen T V,Schimpf D,et al.Supercontinuum generation by femtosecond single and dual wavelength pumping in photonic crystal fibers with two zero dispersion wavelengths[J].Opt.Expr.,2005,13(23):9556-9569.
[9] Genty G,Lehtonen M,Ludvigsen H.Effect of cross-phase modulation on supercontinuum generated in microstruc-tured fibers with sub-30 fs pulses[J].Opt.Expr.,2004,12(19):4614-4624.
[10] Liu M,Chiang K S.Propagation of ultrashort pulses in a nonlinear two-core photonic crystal fiber[J].Applied Physics B,2010,98:815-820.
[11] Agrawal G P.Nonlinear Fiber Optics and Applications of Nonlinear Fiber Optics[M].3th Edition,Beijing:Publishing House of Electronics Industry,2002:172-181.
[12] Cao Wenhua,Zhang Youwei.Effect of pulse walkoff on optical pulse compression based on cross-phase modulation in single-mode fibers[J].Acta Optica Sinica(光学学报),1996,16(12):1737-1744 (in Chinese)
[13] Zhaug Shumin,Luo Aiping,Xu Wencheng.Higher-order soliton compression due to cross-phase modulation in optical fibers[J].Journal of Optoelectronics · Laser(光电子 ·激光),2003,14(8):877-880 (in Chinese).
[14] Cao Wenhua,et al.Enhanced soliton-effect pulse compression by cross-phase modulation in optical fibers[J].Science in China,2000,43(6):595-605.
[15] Luo Aiping,Xu Wencheng,Chen Weicheng,et al.Soliton pulse compression based on cross-phase modulation in anomalous dispersive optical fiber[J].Chinese Journal of Lasers(中国激光),2001,28(5):421-425 (in Chinese).
[16] Serebryannikov E E,Konorov S O,Ivanov A A,et al.Cross-phase-modulation induced instability and efficient parametric frequency conversion of ultrashort light pulses[J].Journal of Experimental and Theoretical Physics,2006,102(5):707-711.
[17] Konorov S O,Akimov D A,Zheltikov A A,et al.Tuning the frequency of ultrashort laser pulses by a cross-phasemodulation-induced shift in a photonic crystal fiber[J].Opt.Lett.,2005,30(12):1548-1550.
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