Chinese Optics Letters, 2019, 17 (8): 080603, Published Online: Jul. 15, 2019
A Q-switched erbium-doped fiber laser based on ZrS2 as a saturable absorber Download: 711次
060.2410 Fibers, erbium 060.3510 Lasers, fiber 160.4330 Nonlinear optical materials 320.7090 Ultrafast lasers
Abstract
A passively Q -switched erbium-doped fiber (EDF) laser is proposed and demonstrated utilizing a zirconium disulfide (ZrS2)-based saturable absorber (SA). ZrS2 nanosheets are prepared, whose modulation depth, saturation intensity, and nonsaturable absorbance are measured to be 14.7%, 0.34 MW/cm2, and 17.4%, respectively. Then, a Q -switched EDF laser is implemented by the ZrS2-SA. The pulse repetition rate varies from 40.65 to 87.1 kHz when the pump power changes from 55 to 345 mW. The shortest pulse width is 1.49 μs with pulse energy of 33.5 nJ. As far as we know, this is the shortest pulse width obtained by a ZrS2-SA so far.
Ping Hu, Yan Huang, Fangfang Liu, Ying Liu, Liping Guo, Xiaolu Ge, Xiaojuan Liu. A Q-switched erbium-doped fiber laser based on ZrS2 as a saturable absorber[J]. Chinese Optics Letters, 2019, 17(8): 080603.