By Topic

Balanced Detection Schemes for Optical Duobinary Communication Systems

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Yi-Hsiang Wang ; Department of Electrical Engineering, University of California, Riverside, CA, USA ; Ilya Lyubomirsky

This paper investigates balanced detection schemes for optical duobinary communication systems, and compares duobinary with differential phase-shift keying (DPSK) modulation. The balanced detection schemes are evaluated in duobinary and DPSK systems limited by amplified spontaneous emission noise, narrow optical filtering, and chromatic dispersion. We also consider the optimization of duobinary generating low-pass filter. Experimental data at 10 Gb/s show that balanced detection yields a significant advantage in receiver sensitivity compared with direct detection for duobinary systems, allowing duobinary systems to approach within ~1.5 dB the performance of DPSK. We also employ Monte Carlo simulations to evaluate balanced detection for 40 Gb/s duobinary transmission systems with narrow optical filtering designed for 50 GHz channel spacing. The simulations confirm our experimental results, and provide a more general investigation of balanced detection schemes. In particular, we propose a novel balanced detection scheme for duobinary systems designed to improve the tolerance to narrow optical filtering.

Published in:

Journal of Lightwave Technology  (Volume:29 ,  Issue: 12 )