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We have experimentally demonstrated the all-fiber generation of 1.3-{\mu}mfemtosecond pulses via Cherenkov radiation (CR) from an ultrafast Er-dopedfiber laser. The experiment shows that the pulses maintain below 40 fs in therange from 1270 to 1315 nm with multi-milliwatt average output power. Theshortest generated pulses can be as short as 29 fs. This ultrashort pulsesource in 1.3-{\mu}m window can bring the benefits to many fields such as thebio-imaging and the ultrafast spectroscopy, and so on.

All-fiber generation of 29-fs pulses at 1.3-{\mu}m via Cherenkov radiation