Network seminar - Friday, November 8

[Joseph Peters <peters@cs.sfu.ca>]

NETWORK MODELLING GROUP

Friday, November 8, 13:30, ASB 10820

Speaker:  Zhengbing Bian

Title:    Strictly Nonblocking Directional-Coupler-Based Switching Networks
          Under Crosstalk Constraint

Coffee and cookies will be provided.
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Abstract:

As the deployment of wavelength-division multiplexing (WDM) transmission
facilities speeds up, the next step is to add cross-connects to route WDM
signals. Directional couplers (DCs) are well suited for the task since they
can pass WDM signals, and they are the basic building blocks for large WDM
cross-connects.  However, DCs suffer from an intrinsic crosstalk problem.
Removing crosstalk has been an important design issue.  The talk will introduce
the principles of constructing strictly nonblocking DC-based photonic switching
systems under various crosstalk constraints.  I will demonstrate how to find
the sufficient nonblocking condition for some well-known networks. 

The talk will be mainly based on the following paper:

M. M. Vaez and C.-T. Lea, ``Strictly nonblocking directional-coupler-based
switching networks under crosstalk constraint,'' IEEE Trans. on Commun.,
vol. 48, no. 2, Feb. 2000.