Open AccessPhotonic circuit for high order USB and LSB separation for remote heterodyning: analysis and simulation
Author(s) -
Mehedi Hasan,
Trevor J. Hall
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.025259
Subject(s) - computer science , photonics , usb , optical carrier transmission rates , transmission (telecommunications) , modulation (music) , radio frequency , electro optic modulator , photonic integrated circuit , electronic engineering , data transmission , optics , phase modulation , telecommunications , optical modulator , physics , radio over fiber , computer hardware , phase noise , engineering , software , acoustics , programming language
A novel photonic integrated circuit is proposed that, using an RF source, generates at its output ports the same magnitude but opposite sign high order single optical side bands of a suppressed optical carrier. A single stage parallel Mach-Zehnder Modulator (MZM) and a two-stage series parallel MZM architecture are described and their relative merits discussed. A transfer matrix method is used to describe the operation of the circuits. The theoretical analysis is validated by computer simulation. As an illustration of a prospective application, it is shown how the circuit may be used as a key element of an optical transmission system to transport radio signals over fibre for wireless access; generating remotely a mm-wave carrier modulated by digital IQ data. A detailed calculation of symbol error rate is presented to characterise the system performance. The circuit may be fabricated in any integration platform offering a suitable phase modulator circuit element such as LiNbO(3), Silicon, and III-V or hybrid technology.