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- W3204386870 abstract "High-power, continuous-wave (cw) mid-infrared (mid-IR) sources near 2 µm are in high demand for variety of applications from spectroscopy to material processing [1] . In particular, cw sources at 2.26 µm are attractive for biomedical applications targeting the 4 th biological window [2] . Optical parametric oscillators offer a possible solution to the generation of cw radiation at 2.26 µm, but require intricate design, careful parameter control for stable operation, and multi-Watt pump powers to overcome threshold [3] . On the other hand, single-pass nonlinear frequency conversion scheme offer a far more simplified approach to mid-IR generation, directly transferring the stability properties of the input pump radiation to the generated output. Combined with fiber pump lasers, they provide a highly effective technique for the generation of high-power cw radiation in mid-IR. Here we report a multi-Watt cw mid-IR source based on single-pass difference-frequency-generation (DFG) of Yb and Tm-fiber lasers in MgO: PPLN, delivering ~4 W of output power at 2262 nm, with excellent power stability and high beam quality. In addition to biological applications, the demonstrated source is attractive for pumping frequency conversion sources for long-wave mid-IR generation above ~4 µm based on mid-IR nonlinear crystals such as OP-GaAs, which require pumping beyond ~2 µm [4] ." @default.
- W3204386870 created "2021-10-11" @default.
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- W3204386870 date "2021-06-21" @default.
- W3204386870 modified "2023-10-06" @default.
- W3204386870 title "High-Power Fiber-Pumped Continuous-Wave Difference-Frequency-Generation at 2.26 µm" @default.
- W3204386870 cites W2524134472 @default.
- W3204386870 doi "https://doi.org/10.1109/cleo/europe-eqec52157.2021.9542136" @default.
- W3204386870 hasPublicationYear "2021" @default.
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