Add/drop filter for a multi-wavelength lightwave system

Details Add/drop filter for a multi-wavelength lightwave system Add/drop filter for a multi-wavelength lightwave system

H - Electricity

04

J

H04J 14/02 (2006.01) G02B 6/34 (2006.01) H04Q 11/00 (2006.01)

Patent

CA 2275062

A method and apparatus are disclosed for providing optical channel adding/dropping capability within a WDM filter-bypass device. The device comprises an optical filter, an optical switch, and means for receiving a control signal to configure the optical switch. When configured in a filter state, the switch routes the WDM signal through the filter to drop, add or drop and add one or more pre-selected WDM channels. When configured in a bypass state, the WDM signal bypasses the filter. A series of filter-bypass devices may be interconnected to increase the number of optical channels that can be dropped or added.

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