Patent ID: 6327059
Filing Date: 2001-12-04
Classification: H04Q

Abstract:
An optical signal processing module comprising:a package;a plurality of optical inputs and outputs, wherein the plurality of optical inputs and outputs are provided on the package; anda plurality of optical signal processing components, wherein the plurality of optical signal processing components include:a first filter, the first filter having an input coupled to a first optical input of the module and having an output;a second filter, the second filter having an input coupled to a second optical input of the module and having an output;a first tap, the first tap having an input coupled to the output of the first filter, having a first output and having a second output;a second tap, the second tap having an input coupled to the output of the second filter, having a first output and having a second output;a first isolator, the first isolator having an input coupled to the first output of the first tap and having an output coupled to a first optical output of the module;a second isolator, the second isolator having an input coupled to the first output of the second tap and having an output coupled to a second optical output of the module; anda combiner, the combiner having a first input coupled to the second output of the first tap, having a second input coupled to the second output of the second tap and having an output coupled to a third optical output of the module,wherein the plurality of optical signal processing components are contained in the package and are coupled to the plurality of optical inputs and outputs.