title: 3 GHz, watt-level femtosecond Raman soliton source.
abstract: We demonstrate a 3 GHz repetition rate, femtosecond Raman soliton source with its wavelength tunable from 1.15 to 1.35 μm. We investigate the dependence of Raman soliton formation on different photonic-crystal fibers (PCFs), input powers, and fiber lengths. To produce a Raman soliton peaking at the same wavelength, shorter PCFs demand higher input average powers and consequently generate stronger Raman soliton pulses. Using 30 cm PCF NL-3.2-945, the resulting Raman soliton pulse at 1.35 μm has 0.9 W average power. The integrated relative intensity noise of the Raman soliton pulse at 1.35 μm generated from the 54-cm PCF NL-3.2-945 is as low as 0.33% from 100 Hz to 10 MHz.
authors.forename: Jinkang
authors.initials: J
authors.lastname: Lim
authors.forename: Hung-Wen
authors.initials: HW
authors.lastname: Chen
authors.forename: Shanhui
authors.initials: S
authors.lastname: Xu
authors.forename: Zhongmin
authors.initials: Z
authors.lastname: Yang
authors.forename: Guoqing
authors.initials: G
authors.lastname: Chang
authors.forename: Franz X
authors.initials: FX
authors.lastname: Kärtner
mesh_terms: D007834:Lasers; D055100:Optical Fibers; D017785:Photons; D013997:Time Factors