Passively Q-Switched Yb3+-Doped Fiber Laser With ReS2 Saturable Absorber

Abstract

Rhenium disulfide (ReS2) is a novel two-dimensional material member in the transition metal dichalcogenides family, which shows unusual saturable absorption properties. A compact and reliable passively Q-switched Yb3+-doped fiber laser at 1047\xa0nm was achieved with ReS2 saturable absorber fabricated by mechanical exfoliation method, which achieved pulse duration decreases from 3.32 to 1.56\xa0μs and the repetition rate increases from 52 to 134\xa0kHz with the pump power from 56 to 200\xa0mW, corresponding to pulse energy and peak power increases from 6.06 to 13.02\xa0nJ and 1.83 to 8.13\xa0mW, respectively. To the best of our knowledge, this is the first report in the 1\xa0μm with ReS2 for short-pulsed generation. Our results prove that layered ReS2 is a new saturable absorber for short-pulsed lasers.