title: Experimental demonstration of packet-rate 10-Gb/s OOK OSNR monitoring for QoS-aware cross-layer packet protection.
abstract: A cross-layer network platform may enable introspective access to the physical layer, allowing optical performance monitoring measurements to feedback to higher layers for packet rerouting and protection. We experimentally demonstrate quality-of-service-aware packet protection that leverages cross-layer signaling based on the monitoring of packets' optical-signal-to-noise ratio. In order to detect degraded data streams, the monitoring system is based on a delay-line Mach-Zehnder interferometer and a field-programmable gate array. The system is realized in an experimental cross-layer enabled optical packet switched fabric, measuring the optical-signal-to-noise ratio for 10-Gb/s OOK streams. The packet protection scheme uses the dynamic performance measurements to actuate a rerouting of high-quality-of-service packets. 8 × 10-Gb/s wavelength-striped optical messages are rerouted through the fabric error-free (bit-error rates less than 10(-12)).
authors.affiliation: Department of Electrical Engineering, Columbia University, New York, NY 10027, USA. caroline@ee.columbia.edu
authors.forename: Caroline P
authors.initials: CP
authors.lastname: Lai
authors.forename: Jeng-Yuan
authors.initials: JY
authors.lastname: Yang
authors.forename: Ajay S
authors.initials: AS
authors.lastname: Garg
authors.forename: Michael S
authors.initials: MS
authors.lastname: Wang
authors.forename: Mohammad R
authors.initials: MR
authors.lastname: Chitgarha
authors.forename: Alan E
authors.initials: AE
authors.lastname: Willner
authors.forename: Keren
authors.initials: K
authors.lastname: Bergman