title: All-optical pulse shaping for ultrawideband doublet pulses using nonlinear optical loop mirror with optical parametric amplification.
abstract: We propose and experimentally demonstrate an alternative photonic scheme for the generation of ultrawideband (UWB) doublet pulses, which is based on an optical fiber-based nonlinear optical loop mirror (NOLM) incorporating the optical parametric amplification (OPA) effect. The proposed scheme uses both cross-phase modulation and OPA within an optical fiber-based NOLM to produce an ideal transfer function for the shaping of input soliton pulses into doublet pulses. Using the proposed scheme, a successful conversion of input soliton pulses into doublet pulses is readily demonstrated. The system performance of UWB doublet pulses is also assessed by propagating the 1.25 Gbit/s doublet pulses over a fiber link. Error-free UWB doublet signal transmission is demonstrated.
authors: School of Electrical and Computer Engineering, University of Seoul, Seoul 130-743, South Korea.
authors: Junsu
authors: J
authors: Lee
authors: You Min
authors: YM
authors: Chang
authors: Ju Han
authors: JH
authors: Lee