Patent ID: 6535310
Filing Date: 2003-03-18
Classification: H04Q

Abstract:
A wavelength division multiplexed (WDM) device, the device comprising:a first fabric having at least one input port and at least one output port, each said at least one input port being adapted to be optically coupled to a respective input optical fiber, each said at least one output port being optically coupled to a respective output optical fiber; at least one wavelength interchanger, said at least one wavelength interchanger having an input port and an output port, the input port of each said at least one wavelength interchanger being optically coupled to a respective output optical fiber of the first fabric; and a second fabric, the second fabric having at least one input port and at least one output port, each said at least one input port of the second fabric being optically coupled to a respective input optical fiber of the second fabric, each said respective input optical fiber of the second fabric being optically coupled to an output port of a respective one of said at least one wavelength interchanger, each said at least one output port of the second fabric being optically coupled to a respective output optical fiber of the second fabric.