A Q-switched erbium-doped fiber laser based on ZrS2 as a saturable absorber

Ping Hu; Yan Huang; Fangfang Liu; Ying Liu; Liping Guo; Xiaolu Ge; Xiaojuan Liu

doi:10.3788/COL201917.080603

Journals >Chinese Optics Letters >Volume 17 >Issue 8 >Page 080603 > Article

Chinese Optics Letters
Vol. 17, Issue 8, 080603 (2019)

A Q-switched erbium-doped fiber laser based on ZrS₂ as a saturable absorber

Ping Hu, Yan Huang, Fangfang Liu, Ying Liu, Liping Guo, Xiaolu Ge, and Xiaojuan Liu^*

Author Affiliations

School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255049, China

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DOI: 10.3788/COL201917.080603 Cite this Article Set citation alerts

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 Copy Citation Text

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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.