Patent ID: 8611749
Filing Date: 2013-12-17
Classification: H04J

Abstract:
1. A reconfigurable optical switching device comprising a Tunable Filters Array (TFA) unit incorporating tunable optical filters, wherein said TFA unit is utilized both for performing a drop function of the device in a colorless and reconfigurable manner, and a through function of the device in a reconfigurable manner, wherein, among the tunable optical filters of the TFA unit, a group of the tunable optical filters serve for filtering out a respective group of drop optical channels, and one or more of remaining tunable optical filters are respectively adapted for filtering out at least one through optical channel, thereby one and the same said TFA unit being utilized for performing the drop function of the device in the colorless and reconfigurable manner, as well as the through function of the device in the reconfigurable manner, and wherein at least one remaining tunable optical filter of the TFA unit is adapted for filtering out an optical channel to be added to said device, thereby said TFA unit being utilized for performing also an add function of the device in the reconfigurable manner.