Higher-order soliton generation in hybrid mode-locked thulium-doped fiber ring laser

Chernysheva, Maria A.; Krylov, Alexander A.; Mou, Chengbo; Arif, Raz N.; Rozhin, Alex G.; Rümmelli, Mark H.; Turitsyn, Sergey K. and Dianov, Evgeny M. (2014). Higher-order soliton generation in hybrid mode-locked thulium-doped fiber ring laser. IEEE Journal of Selected Topics in Quantum Electronics, 20 (5), pp. 425-432.

Abstract

A thulium-doped all-fiber laser passively mode-locked by the co-action of nonlinear polarization evolution and single-walled carbon nanotubes operating at 1860-1980 nm wavelength band is demonstrated. Pumped with the single-mode laser diode at 1.55 μm laser generates near 500-fs soliton pulses at repetition rate ranging from 6.3 to 72.5 MHz in single-pulse operation regime. Having 3-m long cavity average output power reached 300 mW, giving the peak power of 4.88 kW and the pulse energy of 2.93 nJ with slope efficiency higher than 30%. At a 21.6-m long ring cavity average output power of 117 mW is obtained, corresponding to the pulse energy up to 10.87 nJ and a pulse peak power of 21.7 kW, leading to the higher-order soliton generation.

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