Switch for an optical transmission network using wavelength...

Details Switch for an optical transmission network using wavelength... Switch for an optical transmission network using wavelength...

2005-08-30

2005-08-30

Sedighian, M. R. (Department: 2633)

Optical communications

Multiplex

Optical switching

C398S050000, C398S048000, C398S049000, C398S056000

Reexamination Certificate

active

06937822

ABSTRACT:
A switch for an optical transmission network using wavelength division multiplexing has p1input ports receiving p1wavelengths and first switching means for switching the p1wavelengths to p2output ports, q1input ports receiving q1bands of wavelengths and second switching means for switching the q1bands to q2output ports, r1input ports receiving r1groups of bands and third switching means for switching the r1groups of bonds to r2output ports. The three switching means consist of a single switching matrix adapted to couple any of the p1+q1+r1input ports to any of the p2+q2+r2output ports. This single-matrix architecture can switch all the granularities at the same time, which facilitates reconfiguration as a function of evolution of the traffic to be switched.

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Harada K et al.: “Hierarchical Optical Path Cross-Connect Systems for Large Scale WDM Networks”, OFC/IOOC '99 Optical Fiber Communication Conference / International Conference on Integrated Optics and Optical Fiber Communication. San Diego, CA, Feb. 21-26, 1999, Optical Fiber Communication Conference on Integrated OP, Feb. 21, 1999, pp. 356-358, XP002175854.

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