Rayleigh backscattering rejection in single-laser homodyne transceiver for UD-WDM using λ-Shifting

With the aim of using a single laser per transceiver in single fiber splitter-based passive optical networks (PON) with coherent homodyne receivers, we apply wavelength shifting in an ultra-dense wavelength division multiplexing (UD-WDM) scheme. The studied architecture is based on a dual-parallel M...

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Detalles Bibliográficos
Autores: Masanas Jiménez, Miquel|||0000-0001-7500-4872, Santos Blanco, M. Concepción|||0000-0002-5103-5356, Tabares Giraldo, Jeison, Polo Querol, Víctor|||0000-0002-8939-9411, Prat Gomà, Josep Joan|||0000-0002-9817-4695
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/355113
Acceso en línea:https://hdl.handle.net/2117/355113
https://dx.doi.org/10.1109/LPT.2021.3061774
Access Level:acceso abierto
Palabra clave:Optical fiber communication
Wavelength division multiplexing
Passive optical networks
Access networks
Wavelength shifting
Coherent detection
Homodyne detection
Comunicació per fibra òptica
Multiplexatge per divisió de freqüència
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica
Descripción
Sumario:With the aim of using a single laser per transceiver in single fiber splitter-based passive optical networks (PON) with coherent homodyne receivers, we apply wavelength shifting in an ultra-dense wavelength division multiplexing (UD-WDM) scheme. The studied architecture is based on a dual-parallel Mach-Zehnder Modulator (DP-MZM) operating in carrier-suppressed single-sideband (CS-SSB). In this configuration, a single laser feeds both the coherent homodyne receiver, and the transmitter, simplifying the wavelength management in the PON. The modulator carries out both data modulation and wavelength shifting. In this study, a bit rate of 4 Gb/s in QPSK is used to test several roll-off factors and channel spacing configurations. The results show that power budget gains of 18 dB are achievable with a channel spacing equal to only the symbol rate.

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