Design and Implementation of the LEARN Testbed

S. M. Gemelos; D. Wonglumsom; L. G. Kazovsky

doi:10.1364/ONA.1998.TT6

Optical Networks and Their Applications
OSA Trends in Optics and Photonics (Optica Publishing Group, 1998),
paper TT6
•https://doi.org/10.1364/ONA.1998.TT6

Design and Implementation of the LEARN Testbed

S. M. Gemelos, D. Wonglumsom, and L. G. Kazovsky

Optical Networks and Their Applications 1998

Washington, D.C. United States
ISBN: 1-55752-545-5

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Trials, Testbeds, and Network Demonstrations (TT)

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S. M. Gemelos, D. Wonglumsom, and L. G. Kazovsky, "Design and Implementation of the LEARN Testbed," in Optical Networks and Their Applications, R. Barry, ed., Vol. 20 of OSA Trends in Optics and Photonics (Optica Publishing Group, 1998), paper TT6.

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Abstract

The Optical Communications Research Laboratory (OCRL) at Stanford University and Sprint Advanced Technology Laboratories have designed and constructed an experimental WDM network called LEARN: Lightwave Exchangeable Add/Drop Ring Network. LEARN employs two optical add/drop multiplexers (OADMs), one optical wavelength translating cross-connect (OWTC), and an out- of-band control channel for network management and topology reconfiguration. The structure of OADM and OWTC using array waveguide (AWG) routers is described in detail. The implementations of the out-of-band control network based on two architectures, the server-client and the broker, are compared. The LEARN testbed has demonstrated format and bit-rate transparency.

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