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Title:
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Half-duplex transmission avoiding rayleigh backscattering crosstalk in UDWDM-PON with coherent receivers
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Author:
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Segarra Mullerat, Josep; Sales Zaragozá, Vicente; Polo Querol, Víctor; Prat Gomà, Josep Joan
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. GCO - Grup de Comunicacions Òptiques |
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Abstract:
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Ultra Dense Wavelength Division Multiplexing (UDWDM) is a promising technique for access PON, introducing the wavelength-to-the-user concept. The key enabling technology will be a new cost-effective coherent detection scheme, providing high splitting ratios and long-reach extension. This also will allow implementing low-cost, yet effective, coherent terminals suitable for mass deployment. Employing a unique laser diode as transmitter and receiver local oscillator at the ONU to realize a cheap terminal implies to use the same wavelength for both up and down directions; therefore, in Full-Duplex (FD) transmission mode the Rayleigh Backscattering (RB) crosstalk will drastically perturb the reception. We propose and study a Half-Duplex (HD) solution to avoid the RB disturbance and analyze the different scenarios of reach and splitting ratios. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fibra òptica
-Optical fibers
-Optical communications
-Rayleigh model
-Passive optical networks
-Coherent receivers
-Half-duplex (HD) transmission
-Rayleigh backscattering (RB)
-Ultra dense wavelength division multiplexing-passive optical network (UDWDM-PON)
-Fibres òptiques -- Sistemes de comunicació
-Comunicacions òptiques |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Published by:
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Institute of Electrical and Electronics Engineers (IEEE)
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