High-power, few-cycle 2 μm laser pulse generation based on soliton self-compression (Invited)

Tingting Yang; Hongshan Chen; Heyan Liu; Jingjie Hao; Jinwei Zhang

doi:10.3788/IRLA20210355

Journals >Infrared and Laser Engineering >Volume 50 >Issue 8 >Page 20210355 > Article

Infrared and Laser Engineering
Vol. 50, Issue 8, 20210355 (2021)

High-power, few-cycle 2 μm laser pulse generation based on soliton self-compression (Invited)

Tingting Yang, Hongshan Chen, Heyan Liu, Jingjie Hao, and Jinwei Zhang^*

Author Affiliations

School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China

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DOI: 10.3788/IRLA20210355 Cite this Article

Tingting Yang, Hongshan Chen, Heyan Liu, Jingjie Hao, Jinwei Zhang. High-power, few-cycle 2 μm laser pulse generation based on soliton self-compression (Invited)[J]. Infrared and Laser Engineering, 2021, 50(8): 20210355 Copy Citation Text

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Abstract

High-power 2 μm lasers with few-cycle pulse duration have enabled diverse and important applications ranging from nonlinear frequency conversion, laser spectroscopy to medicine. Soliton self-compression is an effective scheme to deliver such pulses, which is driven by a high-power 2 μm laser source with relatively longer pulse duration. In this work, the soliton self-compression process was realized in a large-mode-area photonic crystal fiber(PCF) driven by a mode-locked Ho:YAG thin-disk oscillator, which delivered three-cycle laser pulses at the center wavelength of 2 μm with an average power of 10.2 W. The pulse duration and spectrum of the pulses were measured by a frequency-resolved optical gating(FROG) apparatus, matching well with the simulation results.

Keywords

2 μm thin-disk laser FROG mid-infrared soliton self-compression

$ {i}\frac{\partial {A}}{\partial {\textit{z}}}=\frac{{\mathrm{\beta }}_{2}}{2}\frac{{\partial }^{2}{A}}{{\partial }^{2}{\textit{z}}}-\mathrm{\gamma }{\left|{A}\right|}^{2}{A} $

(2.1)