| 摘要 |
A bi-direction wavelength division multiplexing/demultiplexing device (10) i s disclosed. In an exemplary embodiment, the bi-directional wavelength divisio n multiplexing/demultiplexing device comprises a diffraction grating (20) for combining a plurality of monochromatic optical input beams (12, 14) into a multiplexed, polychromatic optical output beam (24, 26) and for separating a multiplexed, polychromatic optical input beam (28) into a plurality of monochromatic optical output beams; and a transmissive/reflective optical element (18) for transmitting the plurality of monochromatic optical input beams on an optical path toward the diffraction grating (20), and for reflecting the plurality of monochromatic optical output beams received on a n optical path from the diffraction grating (20).
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