Title :
UWB Doublet Generation Employing Cross-Phase Modulation in a Semiconductor Optical Amplifier Mach–Zehnder Interferometer
Author :
Moreno, Valentin ; Rius, Manuel ; Mora, Javier ; Muriel, Miguel A ; Capmany, J.
Author_Institution :
Dept. of Photonics Technol. & Bioeng., Univ. Politec. de Madrid (UPM), Madrid, Spain
Abstract :
In this paper, a novel method to generate ultrawideband (UWB) doublets is proposed and experimentally demonstrated, which is based on exploiting the cross-phase modulation in a semiconductor optical amplifier (SOA). The key component is an integrated SOA Mach-Zehnder interferometer pumped with an optical carrier modulated by a Gaussian pulse. The transfer function of the nonlinear conversion process leads to the generation of UWB doublet pulses by tuning the SOA currents to different values.
Keywords :
Mach-Zehnder interferometers; integrated optoelectronics; optical modulation; optical pulse generation; optical pumping; optical transfer function; phase modulation; semiconductor optical amplifiers; Gaussian pulse; UWB doublet generation; cross-phase modulation; integrated SOA Mach-Zehnder interferometer; nonlinear conversion process; optical carrier modulation; optical tuning; semiconductor optical amplifier; transfer function; ultrawideband doublet generation; Modulation; Nonlinear optics; Optical interferometry; Optical pulses; Optical pumping; Semiconductor optical amplifiers; Transfer functions; Interferometric structure; fiber optics; microwave photonics; nonlinear optics; optical communications;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2013.2288295
