Author(s) Wang, J.; Jiang, Z.; Chen, H.; Li, J.; Yin, J.; Wang, J.; He, T.; Yan, P.; Ruan, S.
Journal Opt Lett
Date Published 2017 Dec 01

Ultrafast pulse generation was demonstrated in a thulium-doped fiber laser mode-locked by magnetron-sputtering deposited WTe2 with a modulation depth, a nonsaturable loss, and a saturable intensity of 31%, 34.3%, and 7.6  MW/cm2, respectively. Stable soliton pulses could be obtained at a 1915.5 nm central wavelength with a pulse duration of 1.25 ps, an average output power of 39.9 mW, and a signal-to-noise ratio of 95 dB. To the best of our knowledge, this was the first demonstration of WTe2-based saturable absorbers in fiber lasers at a 2 μm regime.

DOI 10.1364/OL.42.005010
ISSN 1539-4794
Citation Opt Lett. 2017;42(23):50105013.

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