Author(s) Sun, B.; Luo, J.; Yan, Z.; Liu, K.; Ji, J.; Zhang, Y.; Wang, Q.Jie; Yu, X.
Journal Opt Express
Date Published 2017 Apr 17

We propose and demonstrate a broadly wavelength tunable mode-locked thulium-doped all-fiber laser, delivering sub-400 femtosecond (fs) pulses and tuning from 1867 nm to 2010 nm. The tunable range of 143 nm, to our best knowledge, is the widest in the femtosecond mode-locked thulium-doped fiber lasers (TDFLs). The broadly tunable range and femtosecond pulse oscillation attribute to the large free spectral range and bandwidth of the fiber-based Lyot filter, benefiting from the hybrid device based compact configuration. The hybrid device, integrating wavelength-division-multiplexer, polarization-sensitive isolator and output coupler, effectively diminishes the birefringence and net dispersion.

DOI 10.1364/OE.25.008997
ISSN 1094-4087
Citation Sun B, Luo J, Yan Z, Liu K, Ji J, Zhang Y, et al. 1867-2010 nm tunable femtosecond thulium-doped all-fiber laser. Opt Express. 2017;25(8):8997-9002.

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