Optical waveguides – With optical coupler – Input/output coupler
Patent
1993-04-07
1994-10-18
Healy, Brian
Optical waveguides
With optical coupler
Input/output coupler
385 14, 385 35, 385 49, 385 52, 385 88, 385 89, 385129, 385130, G02B 632, G02B 626
Patent
active
053575903
ABSTRACT:
A device, which provides a high positioning precision and good coupling efficiency for producing an optical coupling between a plurality of first optical waveguides having one spot diameter and a plurality of second optical waveguides having a different spot diameter, comprises optical lenses and a plate arranged between the end faces of the first and second waveguides lying opposite to one another, the plate has one flat surface facing toward the first waveguides and a second flat surface facing toward the second waveguides, the plate having an arrangement for positioning an optical lens between each pair of waveguides. The optical lenses may be planar lenses formed on a flat surface of the plate or may be spherical lenses held in conical depressions on one of the surfaces of the plate. In one embodiment, the plate has depressions on both sides, which may receive spherical lenses. In the arrangement with the planar lenses, the opposite side may be free of depressions or have depressions for receiving optical fibers forming one of the groups of waveguides.
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Iga, "Surface Emitting Lasers and Parallel Operating Devices-Fundamentals and Prospects-" IEICE Transactions of Fundamentals of Electronics, Communications and Computer Sciences, vol. E75-A (1992) Jan., No. 1, Tokyo, Japan, pp. 12-19.
Healy Brian
Siemens Aktiengesellshcaft
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