12 May 2017 Modeling of visible-extended supercontinuum generation from a tapered Ytterbium-doped fiber amplifier
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Proceedings Volume 10173, Fourth International Symposium on Laser Interaction with Matter; 1017320 (2017) https://doi.org/10.1117/12.2267396
Event: 4th International Symposium on Laser Interaction with Matter, 2016, Chengdu, China
Abstract
Supercontinuum generation directly from a nonlinear fiber amplifier, especially from a nonlinear ytterbium-doped fiber amplifier, attracts more and more attention due to its all-fiber structure, high optical to optical conversion efficiency, and high power output potential. However, the modeling of supercontinuum generation from a nonlinear fiber amplifier has been rarely reported. In this paper, the modeling of a tapered Ytterbium-doped fiber amplifier for visible extended to infrared supercontinuum generation is proposed based on the combination of the laser rate equations and the generalized nonlinear Schrödinger equation. Ytterbium-doped fiber amplifier generally can not generate visible extended supercontinuum due to its pumping wavelength and zero-dispersion wavelength. However, appropriate tapering and four-wave mixing makes the visible extended supercontinuum generation from an ytterbium-doped fiber amplifier possible. Tapering makes the zero-dispersion wavelength of the ytterbium-doped fiber shift to the short wavelength and minimizes the dispersion matching. Four-wave mixing plays an important role in the visible spectrum generation. The influence of pulse width and pump power on the supercontinuum generation is calculated and analyzed. The simulation results imply that it is promising and possible to fabricate a visible-to-infrared supercontinuum with low pump power and flat spectrum by using the tapered ytterbium-doped fiber amplifier scheme as long as the related parameters are well-selected.
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Rui Song, Rui Song, Chengmin Lei, Chengmin Lei, Kai Han, Kai Han, Zilun Chen, Zilun Chen, Dongsheng Pu, Dongsheng Pu, Jing Hou, Jing Hou, } "Modeling of visible-extended supercontinuum generation from a tapered Ytterbium-doped fiber amplifier ", Proc. SPIE 10173, Fourth International Symposium on Laser Interaction with Matter, 1017320 (12 May 2017); doi: 10.1117/12.2267396; https://doi.org/10.1117/12.2267396
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