Wavelength multiplexer/demultiplexer using optical fibers

Details Wavelength multiplexer/demultiplexer using optical fibers Wavelength multiplexer/demultiplexer using optical fibers

1987-12-28

1989-06-06

Sikes, William L.

Multiplex communications

Wide area network

Packet switching

350 9615, 350 9616, 350 9617, 370 1, 370 3, G02B 634, H04B 900

Patent

active

048366340

ABSTRACT:
Selector for separating at least two wavelength bands from a complex light introduced into the apparatus through the end of an optical fiber (12) arranged in the immediate vicinity of the focal point of a concave mirror (5) producing a parallel beam directed towards a plane reflecting device, the return beam being focused towards an output optical fiber. It comprises at least one plane miltidielectric layer (8) interposed between the concave mirror (5) and the plane reflecting device (10) and forming, with the vertex axis (6) of the concave mirror, an angle which is slightly different from that of the plane reflecting device, each multidielectric layer having a discontinuity in the vicinity of the vertex axis of the concave mirror.

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Yen et al., "Plane Rowland . . . Demultiplexing" Optics Letters, vol. 6, No. 12, 12/81, pp. 639-641.
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