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.


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    Title :

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


    Contributors:

    Conference:

    Nonlinear Frequency Generation and Conversion: Materials and Devices XIX ; 2020 ; San Francisco,California,United States


    Published in:

    Proc. SPIE ; 11264


    Publication date :

    2020-03-02





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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