Abstract
We demonstrate a compact, all-fiber-integrated laser system that delivers Raman solitons with a duration of ∼100 fs and pulse energy of up to 13.3 nJ, continuously wavelength tunable from 1.98 to 2.29 μm via Raman-induced soliton self-frequency shift (SSFS) in a thulium-doped fiber amplifier. We realize a >90% efficiency of Raman conversion, the highest reported value from SSFS-based sources, to the best of our knowledge. This enables us to achieve >10 nJ soliton energy from a 2.16 to 2.29 μm range, the highest energy demonstrated above 2.22 μm from an SSFS-assisted, all-fiber tunable single-soliton-pulse source, to the best of our knowledge. Our simple and compact all-fiber tunable laser could serve as an efficient ∼2 μm femtosecond source for a wide range of mid-infrared applications.
Original language | English |
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Pages (from-to) | 3518-3521 |
Number of pages | 4 |
Journal | Optics Letters |
Volume | 42 |
Issue number | 18 |
DOIs | |
Publication status | Published - 15 Sep 2017 |
MoE publication type | A1 Journal article-refereed |
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