Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 34, Issue 19, Pages 1007-1010Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2022.3197405
Keywords
Mid-infrared lasers; anti-resonant fibers; Raman lasers; ultrafast lasers
Funding
- National Natural Science Foundation of China [62035002, 62105009]
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This study demonstrated a methane-filled mid-infrared 2.8-mu m picosecond Raman laser with high average power and beam quality, presenting a promising approach for generating mid-infrared ultrafast lasers.
High-power mid-infrared 2.8-mu m ultrafast laser has potential applications in the fields of laser surgery due to its wavelength overlap with the absorption peak of water. In this work, we demonstrate a 2.8-mu m picosecond Raman laser in a methane-filled hollow-core anti-resonant fiber (HC-ARF) with average power of 4 W, pulse energy of 40 mu J, and beam quality of 1.47. The laser beam quality improvement at mid-infrared Raman conversion in methane-filled HC-ARF is firstly observed. This work heralds a promising approach to generate mid-infrared ultrafast Raman laser with multi-Watt level average power and high beam quality.
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