title: 40 GHz adiabatic compression of a modulator based dual frequency beat signal using Raman amplification in dispersion decreasing fiber.
abstract: We demonstrate the use of distributed Raman amplification (DRA) in a dispersion decreasing fiber (DDF) for the efficiency enhancement of adiabatic soliton compression of a dual frequency beat signal. We compress a 40 GHz beat signal generated from a LiNbO3 modulator at a driving RF frequency of 20 GHz into ~ 2.2 ps soliton pulses using DRA in a 20 km DDF. The generation of high quality of soliton pulses from the 40 GHz sinusoidal beat signal is readily achieved with a significantly enhanced efficiency using DDF based DRA, compared to the case of using a DDF without DRA or a DSF with DRA.
authors.forename: Ju Han
authors.initials: JH
authors.lastname: Lee
authors.forename: Young-Guen
authors.initials: YG
authors.lastname: Han
authors.forename: Sang-Bae
authors.initials: SB
authors.lastname: Lee
authors.forename: Taichi
authors.initials: T
authors.lastname: Kogure
authors.forename: David
authors.initials: D
authors.lastname: Richardson