Abstract
A novel technique to conduct optical performance monitoring of WDM networks
is proposed, implemented, and evaluated. The method is based on channel-individual
polarization modulation of the wavelength channels at the transmitter, which
enables low-cost monitor nodes consisting only of one polarizer followed by
low-speed electronics. Despite the few optical components, the channel Stokes
vectors can be measured and subsequently channel power, wavelength, optical
signal-to-noise ratio, differential group delay are obtained. The Stokes vector
precision is measured to be 2$^{\circ}$ (rms),
channel power accuracy $\pm 0.1 $ dB with a 20-dB dynamic range, and the wavelength accuracy is $\pm {30} $ pm. The OPM system was
implemented in the field to monitor five WDM channels in an 820-km-long installed
transmission link.
© 2009 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription