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Picosecond Chirped Pulse Compression in Single-Mode Fibers

Cao Wendua; Liu Songhao; Liao Changjun; Ouo Qi; Jin Huaicheng(Institute of Quantum Electronics, South China Normal University, Guangzhou 510631)  
The nonlinear propegation of picosecond chirped pulses in the normal dispersionregime of single-mode fibers is considered both analytically and numerically. The resultsshow that downchirped pulses can be compressed owing to normal group-velocitydispersion. The compression depends both on the initial peak power and on the initialfrequency chirp of the input pulses. We also show that self-phase-modulation degradespulse compression and that, as the pulse compresses temporally, it synchronouslyexperiences a spectral narrowing,
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