title: Ultrawideband monocycle generation using cross-phase modulation in a semiconductor optical amplifier.
abstract: We propose a novel scheme to generate ultrawideband (UWB) monocycle pulses based on cross-phase modulation (XPM) of a semiconductor optical amplifier (SOA). The proposed system consists of a SOA and an optical bandpass filter (OBF). Due to the XPM, a continuous wave (CW) probe signal is phase modulated by another optical Gauss pulse in the SOA. The OBF will convert the phase modulation to intensity modulation. A pair of polarity-reversed UWB monocycle pulses is achieved by locating the probe carrier at the positive and negative linear slopes of the OBF. Both cases conform to the UWB definition of the Federal Communications Commission.
authors: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China.
authors: Jianji
authors: J
authors: Dong
authors: Xinliang
authors: X
authors: Zhang
authors: Jing
authors: J
authors: Xu
authors: Dexiu
authors: D
authors: Huang
authors: Songnian
authors: S
authors: Fu
authors: P
authors: P
authors: Shum