The future-generation passive optical network (PON) physical layer, targeting 100 Gbps/wavelength, will have to deal with severe optoelectronics bandwidth and chromatic dispersion limitations. In this paper, largely extending our Optical Fiber Communication Conference (OFC) 2020 invited paper, we review 100 Gbps/wavelength PON downstream alternatives over standard single-mode fiber in the O- and C-bands, analyzing three modulation formats (PAM-4, partial-response PAM-4, and PAM-8), two types of direct-detection receivers (APD- and SOA $+$+ PIN-based), and three digital reception strategies (unequalized, feed-forward equalized, and decision-feedback equalized). We evaluate by means of simulations the performance of these alternatives under different optoelectronics bandwidth and dispersion scenarios, identifying O-band feasible solutions able to reach 20 km of fiber and an optical path loss of at least 29 dB over a wide wavelength range of operation. Finally, we compare two digitally precompensated modulation schemes that are highly tolerant of chromatic dispersion, showing a possible extension to C-band operation, preserving direct-detection and linear-impairment equalization at the optical network unit side.
100 Gbps/λ PON downstream O- And C-band alternatives using direct-detection and linear-impairment equalization [Invited] / Torres Ferrera, P.; Wang, H.; Ferrero, V.; Gaudino, R.. - In: JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING. - ISSN 1943-0620. - STAMPA. - 13:2(2021), pp. A111-A123.
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Titolo: | 100 Gbps/λ PON downstream O- And C-band alternatives using direct-detection and linear-impairment equalization [Invited] |
Autori: | |
Data di pubblicazione: | 2021 |
Rivista: | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1364/JOCN.402437 |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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JOCN_Invited_2020_R1_NoRedLined_v1.pdf | Post-print | 2. Post-print / Author's Accepted Manuscript | PUBBLICO - Tutti i diritti riservati | Embargo: 15/12/2021 Richiedi una copia |
JOCN_published_version.pdf | Versione definitiva | 2a Post-print versione editoriale / Version of Record | Non Pubblico - Accesso privato/ristretto | Administrator Richiedi una copia |
http://hdl.handle.net/11583/2859702