Title :
Photonic Monocycle Pulse Frequency Up-Conversion for Ultrawideband-Over-Fiber Applications
Author :
Fu, Songnian ; Zhong, Wen-De ; Wen, Yang Jing ; Shum, P.
Author_Institution :
Network Technol. Res. Centre, Nanyang Technol. Univ., Singapore
fDate :
6/15/2008 12:00:00 AM
Abstract :
We demonstrate a photonic monocycle pulse frequency up-conversion scheme for ultrawideband (UWB)-over-fiber applications using nonlinear polarization rotation arising in a semiconductor optical amplifier. For the first time, we have successfully realized the photonic up-conversion of UWB monocycle pulses with an optical local oscillator signal at 24 GHz in the whole -band. The up-converted UWB monocycle pulse at 24 GHz exhibits a power spectrum density fitting the UWB emission mask. After electrical down-conversion, the UWB monocycle pulse has shown low distortion induced by the optical mixing process.
Keywords :
optical fibre polarisation; optical rotation; semiconductor optical amplifiers; electrical down-conversion; frequency 24 GHz; nonlinear polarization rotation; optical local oscillator signal; optical mixing; photonic monocycle pulse frequency up-conversion; power spectrum density; semiconductor optical amplifier; ultrawideband over fiber; Frequency; Nonlinear optics; Optical distortion; Optical mixing; Optical polarization; Optical pulses; Pulse amplifiers; Semiconductor optical amplifiers; Stimulated emission; Ultra wideband technology; Nonlinear polarization rotation (NPR); photonic up-conversion; semiconductor optical amplifier (SOA); ultrawideband (UWB);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2008.923776
