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Optical multiplexer/demultiplexer

  • US 4,701,012 A
  • Filed: 04/11/1985
  • Issued: 10/20/1987
  • Est. Priority Date: 04/12/1984
  • Status: Expired due to Fees
First Claim
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1. An optical multiplexer/demultiplexer comprising:

  • a plurality of optically transparent elements aligned along an optical axis;

    a plurality of optical filter elements, each of said optical filter elements being selected for a differing wavelength of light and acting as a wavelength selective beam splitter for the selected wavelength of light associated therewith, each one of said plurality of optical filter elements being interposed between adjacent ones of said plurality of transparent elements to form a unitary optical structure wherein each of said plurality of optically transparent elements and each of said plurality of optical filter elements in said unitary structure is aligned along said optical axis to form an elongate unitary structure;

    first input/output means for introducing/receiving multiple wavelength optical information to/from said elongate unitary structure, said first input/output means being disposed at an initial portion of said elongate unitary structure and positioned to introduce/receive multiple wavelength optical information to /from said elongate unitary structure in a direction transverse to said optical axis; and

    a plurality of second output/input means for receiving/introducing selected single wavelength optical information from/to said elongate unitary structure, each of said plurality of second output/input means being disposed at a portion of said elongate unitary structure to receive/introduce selected wavelength optical information from/to an associated one of said plurality of optical filter elements and positioned to receive/introduce said selected wavelength optical information in a direction transverse to said optical axis.

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