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Abstract:
We demonstrated an all-normal-dispersion Yb-doped mode-locked fiber laser based on tungsten disulphide (WS2). The saturable absorbers (SA) were made by mixing WS2 solution with polyvinyl alcohol (PVA), and then evaporated on a substrate. The modulation depth of the WS2 film was 2.06% and the saturable optical intensity was 71.6 MW cm(-2). When the WS2 film was inserted into the fiber laser, the mode-locked pulses with pulse width of 2.5 ns and repetition rate of 2.84 MHz were obtained. As the pump power increased to 350 mW, the maximum output power was measured to be 8.02 mW. To the best of our knowledge, this is the first time to realize mode-locked pulses based on WS2-SA at 1 mu m waveband.
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LASER PHYSICS LETTERS
ISSN: 1612-2011
Year: 2015
Issue: 12
Volume: 12
1 . 7 0 0
JCR@2022
ESI Discipline: PHYSICS;
ESI HC Threshold:190
JCR Journal Grade:1
CAS Journal Grade:3
Cited Count:
WoS CC Cited Count: 46
SCOPUS Cited Count: 46
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 10
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