CUED Publications database

A long-reach ultra-dense 10 Gbit/s WDM-PON using a digital coherent receiver

Lavery, D and Ionescu, M and Makovejs, S and Torrengo, E and Savory, SJ (2010) A long-reach ultra-dense 10 Gbit/s WDM-PON using a digital coherent receiver. Optics Express, 18. pp. 25855-25860.

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Abstract

We investigate the impact of channel spacing and nonlinear transmission over 120 km of standard single mode fiber for a 10 Gbit/s long-reach wavelength division multiplexed passive optical network (WDM-PON). We employed polarization division multiplexed quadrature phase shift keying (PDM-QPSK), which allowed data transmission at 3.125 GBaud, including a 25% overhead for forward error correction. To receive this spectrally efficient modulation format, a digital coherent receiver was employed, allowing for both frequency selectivity and an increased sensitivity of -45 dBm (25 photons/bit).We investigated a channel spacing as low as 5 GHz, for which the loss budget was 48.6 dB, increasing to 54.0 dB for a 50 GHz grid. © 2010 Optical Society of America.

Item Type: Article
Uncontrolled Keywords: Equipment Design Equipment Failure Analysis Microwaves Optical Fibers Signal Processing, Computer-Assisted Telecommunications Transducers
Subjects: UNSPECIFIED
Divisions: Div B > Photonics
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:20
Last Modified: 13 Apr 2021 07:43
DOI: 10.1364/OE.18.025855