All-fiber supercontinuum source in the range of 1550-2400 nm based on telecommunication multimode fiber

For the first time to our best knowledge we have realized all-fiber supercontinuum source based on standard telecommunication multimode fiber. To pump the source Q-switched Er-doped fiber laser was used. The observed spectrum covers the spectral range from 1550 to 2400 nm with the power variation less than two decades. Average power of 0.85 W and pulse energy of 0.19 mJ was measured.