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Interferometer spectrometer with reduced alignment sensitivity

  • US 7,161,679 B2
  • Filed: 12/04/2002
  • Issued: 01/09/2007
  • Est. Priority Date: 10/08/1999
  • Status: Expired due to Fees
First Claim
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1. A method of generating an optical interference pattern utilizing an interferometer having a plurality of optical components including a redirecting means and a beam splitter, the method comprising the steps of:

  • generating an input ray;

    splitting the input ray into a first and a second ray with the beam splitter, both the first ray and the second ray optically interacting in parallel optical paths with all of the optical components of the interferometer;

    redirecting the first ray and the second ray toward the beam splitter with the redirecting means;

    creating an optical path length difference between the first and second rays; and

    combining the first ray and the second ray to form an output ray pair having an interference pattern.

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