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Proceedings Paper

Spectral compression of femtosecond pulses in photonic crystal fiber with anomalous dispersion
Author(s): H. P. Li; X. J. Zhang; J. K. Liao; X. G. Tang; Y. Liu; Y. Z. Liu
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Paper 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.

Paper Details

Date Published: 2 December 2009
PDF: 6 pages
Proc. SPIE 7630, Passive Components and Fiber-based Devices VI, 76301I (2 December 2009); doi: 10.1117/12.852965
Show Author Affiliations
H. P. Li, Univ. of Electronic Science and Technology of China (China)
X. J. Zhang, Univ. of Electronic Science and Technology of China (China)
J. K. Liao, Univ. of Electronic Science and Technology of China (China)
X. G. Tang, Univ. of Electronic Science and Technology of China (China)
Y. Liu, Univ. of Electronic Science and Technology of China (China)
Y. Z. Liu, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 7630:
Passive Components and Fiber-based Devices VI
Perry P. Shum, Editor(s)

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