Flexible resource provisioning of polarization independent coherent PONs based on non-orthogonal multiple access and multiCAP modulation

David Izquierdo (Corresponding author), Jose A. Altabas, Miguel Barrio, Jesus Clemente, Pablo Millan, Samael Sarmiento, Jose A. Lazaro, Simon Rommel, Rafael Puerta, Juan Jose Vegas Olmos, Idelfonso Tafur Monroy, Ignacio Garces

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Abstract

A combined non-orthogonal multiple access (NOMA) and multiband carrierless amplitude and phase modulation (multiCAP) scheme is proposed for flexible resource provisioning in coherent passive optical networks (PONs). While the proposed combination increases the data-rate and the number of users through the inclusion of NOMA and multiCAP, the coherent reception increases the range and splitting factor of the network through optical power budget enhancement. The proposed system is experimentally evaluated providing a 20 Gb/s aggregated data-rate per wavelength with 10G optoelectronics and applied in two main PON scenarios with four spectral configurations from full-band CAP to four-band multiCAP. The first PON scenario consists of an existing PON that the network operator requires to increase the number of users; NOMA with full-band CAP or multiCAP can be introduced replacing one or more users of the existing PON by one or several new sub-networks and multiplexing the sub-networks by NOMA. In the other PON scenario, several PONs can be nested sharing an initial splitter and achieving a larger number of users by the combination of NOMA and multiCAP. The proposed techniques are fully compatible with other multiplexing techniques such as dense wavelength division multiplexing, which should be considered to achieve higher numbers of users.

Original languageEnglish
Article number9394570
Pages (from-to)140-146
Number of pages7
JournalJournal of Optical Communications and Networking
Volume13
Issue number7
DOIs
Publication statusPublished - Jul 2021

Bibliographical note

Funding Information:
Gobierno de Aragon (T20_20R); Ministerio de Economia y Competitividad (TEC2017-85752-R, TEC2017-90034-C2-2-R); Electronic Components and Systems for European Leadership (H2020/ECSEL BRAINE - 876967).

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