Femtosecond Pulse Propagation In Optical Fibers: Distortion And Nonlinear Chirping

E Bourkoff; W Zhao

doi:10.1117/12.943535

2 June 1988 Femtosecond Pulse Propagation In Optical Fibers: Distortion And Nonlinear Chirping

E Bourkoff, W Zhao

Proceedings Volume 0864, Advanced Optoelectronic Technology; (1988) https://doi.org/10.1117/12.943535
Event: 1987 Symposium on the Technologies for Optoelectronics, 1987, Cannes, France

Abstract

Using computer simulations, we examine various factors affecting the propagation of femtosecond pulses in single-mode optical fibers in the wavelength range of normal dispersion. In particular, we show that distortion and nonlinear chirping of the pulse can arise from such con-siderations as initial pulse asymmetry, higher-order dispersion and nonlinearity effects in the fiber, and higher-order dispersion from optical components such as grating-pair compressors. The effect of initial pulse chirp is also examined. In addition, we investigate intensity-dependent spectra of these propagating pulses. Our results indicate that the addition of both the cubic-dispersion term and the so-called shock term in the nonlinear Schro-dinger equation generate intensity-dependent pulse spectra that compare well with experiments. We also show that asymmetry in the input pulse can be a contributing factor responsible for asymmetric spectra. Finally, we show how the use of additional optical components can be utilized to compensate for cubic phase distortion pulse, leading to a fuller utilization of the pulse bandwith and state-of-the-art pulse durations.

Citation Download Citation

E Bourkoff and W Zhao "Femtosecond Pulse Propagation In Optical Fibers: Distortion And Nonlinear Chirping", Proc. SPIE 0864, Advanced Optoelectronic Technology, (2 June 1988); https://doi.org/10.1117/12.943535

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