Abstract

We propose to use optical correlation to measure the quality of an optical link in real time, staying completely within the optical domain. We transmit a test signal of 010 and correlate the received (degraded) signal with 010. The strength and shape of the output measure dispersion and attenuation in just 3 bit periods (75 ps at 40 Gb/s) compared with minutes by traditional methods. Correlation becomes feasible owing to the recent development of tapped delay lines with very large numbers of taps. We present simulations showing that this technique can detect attenuation, dispersion, noise, and jitter. With this instantaneous quality-of-service information available to all nodes in a network, new protocols will enable the network to select paths based on quality, allowing service providers to take into account the system’s physical impairments when selecting new light paths or when restoring existing ones and to guarantee varying levels of service. We present one such protocol.

© 2004 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Real-time all-optical performance monitoring using optical bit-shape correlation

Feras Abou-Galala and Betty Lise Anderson
Appl. Opt. 48(5) 924-931 (2009)

Experimental Investigation of Quality of Service in an IP All-Optical Network Adopting Wavelength Conversion

Alessandro Valenti, Sergio Pompei, Luca Rea, Francesco Matera, Giorgio Tosi Beleffi, Franco Curti, Silvia Di Bartolo, Gabriele Incerti, and Davide Forin
J. Opt. Commun. Netw. 1(2) A170-A179 (2009)

Monitoring of Linearly Accumulated Optical Impairments in All-Optical Networks

Siu-Ting Ho and Lian-Kuan Chen
J. Opt. Commun. Netw. 1(1) 125-141 (2009)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (12)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (5)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription