Selection module for an optical signal switch and an optical...

Details Selection module for an optical signal switch and an optical... Selection module for an optical signal switch and an optical...

2006-03-28

2006-03-28

Ullah, Akm Enayet (Department: 2874)

Optical waveguides

With optical coupler

Switch

C398S100000

Reexamination Certificate

active

07020356

ABSTRACT:
A selection module for use in an optical signal switch comprises a spatial selector comprising a plurality of inputs each receiving a wavelength division multiplexed optical signal comprising a plurality of channels each associated with a separate wavelength, an output delivering a single signal selected from the plurality of wavelength division multiplexed signals, and a plurality of spectral selectors each selecting a channel from a plurality of channels of the signal selected by the spatial selector.

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Habara K et al: “Large-Capacity Photonic Packet Switch Prototype Using Wavelength Routing Techniques” IEICE Transactions on Communications, Institute of Electronics Information and Comm. Eng. Tokyo, JP, vol. E83-B, No. 10, Oct. 2000, pp. 23047-23110, XP001065342.
Hu W S et al: “Multicasting Optical Cross Connects Employing Splitter-and-Delivery Switch” IEEE Photonics Technology Letters, IEEE Inc. New York, US, vol. 10, No. 7, Jul. 1, 1998, pp. 970-972, XP000771730.
Mino S et al: “Q-Factor-Based Level Dsigne for Photonic ATM Switches” IEICE Transactions on Communications, Institute of Electronics Information and Comm. Eng. Tokyo, JP, vol. E-82B, No. 2, Feb. 2, 1999, pp. 288-297, XP00094017.

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