Summary form only given. Several authors have proposed and demonstrated the use of acousto-optic tunable filters (AOTF) for WDM channel equalization by using these devices as wavelength-selective variable attenuators. These solutions require a system for WDM channel monitoring, which is usually realized using complex and expensive optical filtering techniques. In this paper we propose and demonstrate a simple and efficient solution to the monitoring problem, based on the use of subcarrier signals. In our system, each wavelength, besides the high bit-rate baseband signal, carries a subcarrier tone at frequency higher than the bit rate, so that the tone is spectrally separated from the baseband.
WDM channel equalization based on subcarrier signal monitoring
01.01.1998
221417 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Subcarrier signal combiner for arrayed antennas
NTRS | 1977
|An adaptive channel equalization algorithm for MFL signal
Tema Archiv | 2012
|Signal Distortion in Optically Prefiltered Subcarrier Systems
British Library Conference Proceedings | 1994
|Novel tracking loop of BOC signal based on subcarrier tracking
British Library Online Contents | 2011
|