title: Watt-level mid-infrared radiation via self-seeded difference-frequency generation from a pre-chirp managed femtosecond Yb-fiber amplifier.
abstract: We obtained over 1 W average power at ∼3550  nm wavelength via self-seeded difference-frequency generation (DFG) through a 5 cm long periodically poled MgO-doped lithium niobate crystal. The pump and signal sources are derived from the identical pre-chirp managed femtosecond Yb-fiber amplifier with sub-100-fs pulse duration and 84 MHz repetition rate for simple synchronization. This result is believed to be among the highest-average-power, femtosecond mid-infrared radiation obtained via DFG.
authors.forename: Chengzhi
authors.initials: C
authors.lastname: Hu
authors.forename: Wenjie
authors.initials: W
authors.lastname: Yue
authors.forename: Tao
authors.initials: T
authors.lastname: Chen
authors.forename: Peipei
authors.initials: P
authors.lastname: Jiang
authors.forename: Bo
authors.initials: B
authors.lastname: Wu
authors.forename: Yonghang
authors.initials: Y
authors.lastname: Shen