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  Numerical Maps for Fiber Lasers Mode Locked with Nonlinear Polarization Evolution: Comparison with Semi-Analytical Models
 
 
Titel: Numerical Maps for Fiber Lasers Mode Locked with Nonlinear Polarization Evolution: Comparison with Semi-Analytical Models
Auteur: Martel, G.
Chedot, C.
Hideur, A.
Grelu, Ph.
Verschenen in: Fiber & integrated optics
Paginering: Jaargang 27 (2008) nr. 5 pagina's 320-340
Jaar: 2008-09
Inhoud: We have used a fully vectorial model based on two coupled nonlinear Schrodinger equations to study mode locking and pulse generation initiated and stabilized by nonlinear polarization evolution in a stretched pulse, double-clad, Yb-doped, fiber laser. The model takes explicitly into account gain saturation, finite amplification bandwidth, Kerr-induced self- and cross-phase modulations, group velocity dispersion, polarization control, and linear birefringence. Complete maps versus the orientation of intra-cavity wave-plates have been established. They comprise a large variety of pulse regimes that can be simply obtained by turning the intracavity wave-plate: stable single pulse per round trip, multiple pulsing, unstable pulsing on a continuous wave (CW) background, as well as limit cycles. In addition, we have demonstrated that linear birefringence plays a key role in the pulse-shaping mechanism induced by nonlinear polarization evolution.
Uitgever: Taylor & Francis
Bronbestand: Elektronische Wetenschappelijke Tijdschriften
 
 

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