Open AccessInvestigation of the effect of an increased supervisory signal power in a high‐loss loopback monitoring system
Author(s) -
Nahas Mousaab M.,
Blow Keith J.
Publication year - 2014
Publication title -
iet communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.355
H-Index - 62
eISSN - 1751-8636
pISSN - 1751-8628
DOI - 10.1049/iet-com.2013.0950
Subject(s) - signal (programming language) , electronic engineering , wavelength division multiplexing , power (physics) , transmission (telecommunications) , computer science , channel (broadcasting) , wavelength , telecommunications , engineering , physics , optoelectronics , quantum mechanics , programming language
We present experimental results for the effect of an increased supervisory signal power in a high‐loss loopback supervisory system in an optically amplified wavelength division multiplexing (WDM) transmission line. The study focuses on the investigation of increasing the input power for the supervisory signal and the effect on the co‐propagating WDM data signals using different channel spacing. This investigation is useful for determining the power limitation of the supervisory signal if extra power is needed to improve the monitoring. The study also shows the effect of spacing on the quality of the supervisory signal itself because of interaction with adjacent data signals.