This paper presents a solution for upgrading optical access networks by reusing existing electronics or optical equipment: sliceable transponders using signal spectrum slicing and stitching back method after direct detection. This technique allows transmission of wide bandwidth signals from the service provider (OLT - optical line terminal) to the end user (ONU – optical network unit) over an optical distribution network (ODN) via low bandwidth equipment. We show simulation and experimental results for duobinary signaling of 1 Gbit/s and 10 Gbit/s waveforms. The number of slices is adjusted to match the lowest analog bandwidth of used electrical devices and scale from 2 slices to 10 slices. Results of experimental transmission show error free signal recovery by using post forward error correction with 7% overhead.

Date Published: 7 February 2015
PDF: 11 pages
Proc. SPIE 9388, Optical Metro Networks and Short-Haul Systems VII, 938805 (7 February 2015); doi: 10.1117/12.2079079

Published in SPIE Proceedings Vol. 9388:
Optical Metro Networks and Short-Haul Systems VII
Atul K. Srivastava; Benjamin B. Dingel; Achyut K. Dutta, Editor(s)