Milliwatt midinfrared from intrapulse difference frequency with a single erbium fiber laser

Kevin F. Lee; Peter G. Schunemann; Martin E. Fermann

doi:10.1117/12.2543079

2 March 2020 Milliwatt midinfrared from intrapulse difference frequency with a single erbium fiber laser

Kevin F. Lee, Peter G. Schunemann, Martin E. Fermann

Proceedings Volume 11264, Nonlinear Frequency Generation and Conversion: Materials and Devices XIX; 1126404 (2020) https://doi.org/10.1117/12.2543079
Event: SPIE LASE, 2020, San Francisco, California, United States

Abstract

We generate about 2 mW of midinfrared in orientation-patterned gallium phosphide pumped by an erbium fiber laser. The midinfrared spectrum has a strong component around 8 to 10 μm wavelength, with a broad background from about 7 to 12 μm. The pump laser has 5 W, single mode output at 96 MHz compressed to 65 fs, with a peak power of up to about 0.6 MW. Before midinfrared generation, we further broaden and recompress the pulses in a small length of fiber, obtaining 3 W of 17 fs pulses with peak power near 1 MW but broader bandwidth to generate midinfrared.

Citation Download Citation

Kevin F. Lee, Peter G. Schunemann, and Martin E. Fermann "Milliwatt midinfrared from intrapulse difference frequency with a single erbium fiber laser", Proc. SPIE 11264, Nonlinear Frequency Generation and Conversion: Materials and Devices XIX, 1126404 (2 March 2020); https://doi.org/10.1117/12.2543079

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