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Wavelength selectable optical filter

  • US 20020167730A1
  • Filed: 05/01/2002
  • Published: 11/14/2002
  • Est. Priority Date: 05/02/2001
  • Status: Abandoned Application
First Claim
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1. A wavelength tunable optical filter comprising two back-to-back Fabry-Perot optical cavities comprising a fixed mirror common to both cavities with parallel displaceable mirrors located one on each side of the fixed mirror to adjust the overall known length of the respective cavities.

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