Patent ID: 7941052

Claim:
An optical communications device comprising: a first plurality of light transmitters of a first wavelength, coupled to a first plurality of waveguides of an optical data link, respectively; a second plurality of light transmitters of a second wavelength different than the first wavelength, coupled to a second plurality of waveguides of the link, respectively, wherein the first and second plurality of light transmitters are to transmit data from the same data processing element that is to use the link to communicate with another data processing element; a first plurality of light detectors of the first wavelength, coupled to the second plurality of waveguides, respectively; and a second plurality of light detectors of the second wavelength, coupled to the first plurality of waveguides, respectively, wherein the first and second plurality of light transmitters are arranged in a column, and the first and second plurality of light detectors are arranged in a different column.