1 December 2009 Spectral compression of femtosecond pulses in photonic crystal fiber with anomalous dispersion
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Proceedings Volume 7630, Passive Components and Fiber-based Devices VI; 76301I (2009) https://doi.org/10.1117/12.852965
Event: Asia Communications and Photonics, 2009, Shanghai, Shanghai , China
Abstract
We present a numerical investigation of nonlinear propagation of chirp-free femtosecond pulses at 1550-nm wavelength in a nonlinear photonic crystal fiber (PCF) with anomalous dispersion. The PCF has a second-order dispersion of - 8.67 ×104 fs2/m, third-order dispersion of 2.8 x 105 fs3/m and nonlinear coefficient of 11 W-1km-1 at 1550 nm. The simulation results show that efficient spectral compression of unchirped ultrashort pulses is induced in PCF when the input pulse parameters satisfy the condition 0.6< N<0.7for the soliton number N. It is found that the compressed spectral width is strongly dependent on the initial peak power and propagation length of the incident pulse. A compression factor up to 7 can be achieved. With the PCF, efficient spectral compression can take place in the wavelength range of 1530 ~ 1570 nm covering the C-band. This spectral-compression scheme offers much promise for laser spectroscopy, optical information technologies and high-power fiber-laser systems.
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H. P. Li, H. P. Li, X. J. Zhang, X. J. Zhang, J. K. Liao, J. K. Liao, X. G. Tang, X. G. Tang, Y. Liu, Y. Liu, Y. Z. Liu, Y. Z. Liu, } "Spectral compression of femtosecond pulses in photonic crystal fiber with anomalous dispersion", Proc. SPIE 7630, Passive Components and Fiber-based Devices VI, 76301I (1 December 2009); doi: 10.1117/12.852965; https://doi.org/10.1117/12.852965
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