Abstract
A soliton mode-locked lead selenide (PbSe) quantum-dot-doped fiber laser (QDFL) is proposed and investigated by numerical simulation for the first time. Buildup dynamics in time and spectral domains are studied. Output properties starting from Gaussian and noise-like signals are characterized. The optimum quantum-dot-doped fiber lengths are revealed under various PbSe quantum dot doping concentrations. The evolutions of the pulse and spectrum in the resonator at the steady state are discussed. The results obtained facilitate the understanding of the operating principle of QDFL for solving emission wavelength problem.
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