Patent ID: 6181849
Filing Date: 2001-01-30
Classification: G02B

Abstract:
An optical signal device comprising:a first waveguide input for receiving an optical signal having a first set of wavelengths;a second waveguide input for receiving an optical signal having a second set of wavelengths, wherein at least a part of said first set of wavelengths and a part of said second set of wavelengths are interleaved;a first set of waveguide output ports corresponding to said first waveguide input port and operationally connected to said first waveguide input port through a first slab coupler, a waveguide grating and a second slab coupler; anda second set of waveguide output ports corresponding to said second waveguide input port operationally connected to said first waveguide input port through said second slab coupler, said waveguide grating and said first slab coupler.