Patent ID: 6639702
Filing Date: 2003-10-28
Classification: G02B

Abstract:
An optical module comprising:a first multiplexer receiving a signal input to said optical module along a first waveguide and having at least a first signal component, in a first optical band, and a second signal component, in a second optical band, said first multiplexer separating said first and second signal components and outputting said first and second signal components via separate outputs; and a second multiplexer operatively connected to said first multiplexer to receive said first signal component along a second waveguide, said second multiplexer containing a reflective element and operating to output a signal, along a third waveguide, in the opposite direction of said signal input to said optical module, wherein said reflecting element is integrated into said second multiplexer, and said first, second, and third waveguides are separate waveguides and are substantially parallel.