Four-port wavelength-selective crossbar switches (4wcs)...

Details Four-port wavelength-selective crossbar switches (4wcs)... Four-port wavelength-selective crossbar switches (4wcs)...

H - Electricity

04

Q

H04Q 11/02 (2006.01) H04J 14/02 (2006.01) H04Q 3/52 (2006.01) H04Q 11/00 (2006.01)

Patent

CA 2369396

A four-port wavelength-selective crossbar switch generates an add/drop wavelength signal from a wave division multiplexed (WDM) signal using a plurality of double-sided reflectors that selectively reflects a selected wavelength channel signal of the WDM signal through optical circulators to provide low crosstalk between the dropped and added wavelength signals. The switch also reduces the number of WDM MUX-DEMUX required to one half that compared to a traditional approach. Furthermore, the switch can be designed to be wavelength cyclic with individual free spectral ranges that can be independently set to either through or add/drop states.

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