Optical wavelength demultiplexer

  • US 6,198,864 B1
  • Filed: 11/24/1998
  • Issued: 03/06/2001
  • Est. Priority Date: 11/24/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. An optical demultiplexer comprising:

  • a body;

    a plurality of wavelength-specific filters connected to an output region of said body;

    input means, integrated into said body, for directing a beam of optical energy that includes multiple wavelengths toward a first one of said wavelength-specific filters; and

    a relay arrangement of reflective focusing lenses configured to recurringly converge said beam and to redirect said beam to said wavelength-specific filters, said reflective focusing lenses being integrally formed into said body and being positioned relative to said wavelength-specific filters such that beam convergence occurs with approach to each said wavelength-specific filter and such that at least a portion of said beam impinges multiple wavelength-specific filters and reflective focusing lenses.

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