Generation of 131 fs mode-locked pulses from 2.8 μm Er:ZBLAN fiber laser

Hongan Gu; Zhipeng Qin; Guoqiang Xie; Ting Hai; Peng Yuan; Jingui Ma; Liejia Qian

doi:10.3788/COL202018.031402

Journals >Chinese Optics Letters >Volume 18 >Issue 3 >Page 031402 > Article

Chinese Optics Letters
Vol. 18, Issue 3, 031402 (2020)

Generation of 131 fs mode-locked pulses from 2.8 μm Er:ZBLAN fiber laser | Editors' Pick

Hongan Gu, Zhipeng Qin, Guoqiang Xie^*, Ting Hai, Peng Yuan, Jingui Ma, and Liejia Qian

Author Affiliations

School of Physics and Astronomy, Key Laboratory for Laser Plasmas (Ministry of Education), Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China

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DOI: 10.3788/COL202018.031402 Cite this Article Set citation alerts

Hongan Gu, Zhipeng Qin, Guoqiang Xie, Ting Hai, Peng Yuan, Jingui Ma, Liejia Qian. Generation of 131 fs mode-locked pulses from 2.8 μm Er:ZBLAN fiber laser[J]. Chinese Optics Letters, 2020, 18(3): 031402 Copy Citation Text

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Abstract

We demonstrated a femtosecond mode-locked Er:ZrF₄-BaF₂-LaF₃-AlF₃-NaF (Er:ZBLAN) fiber laser at 2.8 μm based on the nonlinear polarization rotation technique. The laser generated an average output power of 317 mW with a repetition rate of 107 MHz and pulse duration as short as 131 fs. To the best of our knowledge, this is the shortest pulse generated directly from a mid-infrared mode-locked Er:ZBLAN fiber laser to date. Numerical simulation and experimental results confirm that reducing the gain fiber length is an effective way to shorten the mode-locked pulse duration in the Er:ZBLAN fiber laser. The work takes an important step towards sub-100-fs mid-infrared pulse generation from mode-locked Er:ZBLAN fiber lasers.

Keywords

Er:ZBLAN fiber generation mode-locked pulses