Mid-IR supercontinuum generation in Ho-doped fiber amplifier

For the first time to our best knowledge we have used Ho-doped fiber amplifier to get supercontinuum in the mid-IR range using all-fiber scheme. To pump the source Q-switched Er-doped fiber was used. The observed spectrum covers the spectral range from 2000 to 2500 nm with the power variation less than two decades. Average power of 0.4 W and pulse energy of 0.1 mJ was measured.

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