| 摘要 |
An optical coupling device and method is disclosed, wherein two lenses having a non-unitary configuration are positioned between a plurality of input ports and a plurality of output ports having different center-to-center distances. More specifically, the spacing d1 between input ports is fixed and is different in magnitude from the fixed spacing d2 between output ports. Preferably, the two lenses have a common axis and are separated by a distance d3, which is selected in dependence upon the known and fixed spacings, d1 and d2. Advantageously, the disclosed coupling device provides a simple and economical apparatus and method for coupling light between a first plurality of ports having a fixed distance therebetween to a second plurality of ports having a different fixed distance therebetween.
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