RT Journal Article
T1 Photonic integrated frequency shifter based on double side band modulation: Performance analysis
A1 Betancur Pérez, Andrés Felipe
A1 Dios Fernández, Cristina de
A1 Acedo Gallardo, Pablo
AB In this research, we present an analysis of a photonic integrated frequency shifter as a stage for a THz dual comb generator. We studied the performance of the PIC by simulating it with standard building blocks, and aimed toward an improvement of the output signal quality. We revised two approaches of the PIC by simulating two modes of generating a double side band modulation suppressed carrier (DSB-SC) with a Mach Zehnder modulator structure (MZM). One approach was using a single Electro-Optic Phase Modulator (EOPM) on an MZM structure (SE-MZM), and the other one was using Double EOPM (DE-MZM). We found a cleaner spectrum with the DE-MZM, since this structure is usually applied to reduce the chirp effect in optical communication systems. We obtained 23 dB of side mode suppression ratio SMSR with one filter, and 44 dB of SMSR with a two-stage filter. In the case of DE-MZM, we obtained a clean tone on intermediate frequency (IF) free of spurious sidebands and comb in IF frequency with 10 dB more power compared to SE-MZM.
PB MDPI
SN 2304-6732
YR 2022
FD 2022-11
LK https://hdl.handle.net/10016/37116
UL https://hdl.handle.net/10016/37116
LA eng
NO This article belongs to the Special Issue Recent Advances in THz and Microwave Photonics.
NO This research was supported by Instituto Tecnológico Metropolitano under the project P21101 "Fortalecimiento y Consolidación del Grupo Automática, Electrónica y Ciencias Computacionales para Responder a las Necesidades de las Industrias 4.0". This work was also supported by Universidad Carlos III de Madrid, the EU H2020 Celta project under Grant Agreement 675683, by the Spanish Ministry of Economy and Competitiveness under Project TEC2017-86271-R and by the ATTRACT project funded by the EC under Grant Agreement 777222.
DS e-Archivo
RD 1 jul. 2024