| 摘要 |
<p>Apparatus and method for optically coupling a plurality of optical fibers, each of which can carry information signals on one or more modulated electromagnetic waves having preassigned wavelengths, such that predetermined portions of any output from any fiber is selectively directed by the apparatus into the ends of various combinations of other optical fibers in accordance with predesignated wavelengths associated with each combination. The apparatus comprises, in preferred form, an optical element and a holographic layer having interferometrically formed therein index of refraction variations to facilitate the selective direction of the output signals form the optical fibers.</p> |
