| 摘要 |
<p>A multiplexor/demultiplexor employs a bulk grating, an array of input/output waveguides, and a lens between the grating and the array of waveguides. A concentrator chip is disposed between the array of waveguides and the lens for providing closely spaced waveguides for transmitting/receiving light to/from the lens in a multiplexing/demultiplexing mode of operation respectively. At another end of the concentrator chip waveguides are less closely spaced to couple with the array of input/output waveguides. Since the core separation of the of the cores of the receiving waveguides (in a demultiplexing mode) is inversely proportional to the bandwidth of the demultiplexed channels, providing closely spaced cores provides wide bandwidth separated channels. <IMAGE></p> |
