For WDM rings, we propose a sub-lambda traffic grooming scheme, which we term optical burst transport (OBT). To demonstrate its scalability and performance, we investigate the operational issues, and discuss an OBT prototype implementation.
"Strong signal power variations due to both signal add/drop or burst transmission are a main concern in amplified transmission systems due to gain saturation of optical amplifiers (OA). In particular this is a key issue for optical burst transmission , where potential degradation can be accumulated along the system . Several techniques have been proposed to stabilize the amplifier gain and passive all-optical means is a very promising one . "
[Show abstract][Hide abstract] ABSTRACT: This paper demonstrates significant BER improvement in burst traffic transmission using optical-gain clamped amplifiers. Critical chaotic cases are identified for peculiar burst sequences and their impact in transmission is assessed.
Optical Fiber Communication - incudes post deadline papers, 2009. OFC 2009. Conference on; 04/2009
[Show abstract][Hide abstract] ABSTRACT: Experimental studies of real optical burst traffic in WDM systems are performed with optical gain clamping for stabilizing the EDFA amplification. Impairments of power variation due to burst are shown to be negligible. Postprint (published version)
[Show abstract][Hide abstract] ABSTRACT: A sublambda traffic-grooming scheme on wavelength-division-multiplexed (WDM) rings, which is called optical burst transport (OBT), is proposed. The network protocol and architecture allow increased flexibility to tailor the transport network behavior for efficient delivery of bursty data traffic. Using different network parameters, its performance is analyzed via simulation, and the implementation issues including the media-access-control (MAC) protocol, tunable-filter controller, and burst-mode receiver are addressed. Finally, the feasibility of the OBT with an experimental testbed built by the authors is demonstrated and a streaming-video application is used to present its overall functionality.
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