Multi-carrier transmitter for future access networks

T. Huynh, R. Zhou, S. Latkowski, F. Smyth, L.P. Barry, P.M. Anandarajah

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic


The authors present a multi-carrier transmitter based on a gain switched laser employed in a next generation access network. The simple, robust and cost efficient direct modulation based comb generation technique offers closely spaced coherent channels. Each of the channels is imposed with 2.5 Gbaud data using QPSK and 16-QAM formats. The authors also present a performance comparison between the commonly used coherent detection scheme and a novel receiver architecture based on a pilot tone aided direct detection scheme. The simplified low cost receiver, enabled by the phase correlated optical comb tones, eases the requirement for an expensive local oscillator (tunable laser), reduces the need for digital signal processing and also greatly enhances the phase noise tolerance of the system.
Original languageEnglish
Title of host publicationProceedings of the 2012 14th International Conference on Transparent Optical Networks (ICTON), 2-5 July 2012, Warwick, Coventry, UK
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
ISBN (Print)978-1-4673-2228-7
Publication statusPublished - 2012
Event14th International Conference on Transparent Optical Networks (ICTON 2012) - University of Warwick, Coventry, United Kingdom
Duration: 2 Jul 20125 Jul 2012
Conference number: 14


Conference14th International Conference on Transparent Optical Networks (ICTON 2012)
Abbreviated titleICTON 2012
Country/TerritoryUnited Kingdom
Internet address


Dive into the research topics of 'Multi-carrier transmitter for future access networks'. Together they form a unique fingerprint.

Cite this