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Multifunctional sensor system

  • US 5,606,170 A
  • Filed: 02/03/1995
  • Issued: 02/25/1997
  • Est. Priority Date: 02/03/1995
  • Status: Expired due to Term
First Claim
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1. A multifunctional optical sensor system for sensing a sensed target objective, wherein said sensor system comprises:

  • an optical input means;

    an intrinsic optical sensor means comprising an intrinsic optical sensing fiber means; and

    optical return means;

    wherein said optical input means are adapted to receive excitation light from an excitation light source;

    wherein said optical input means are for conveying said excitation light to said intrinsic optical sensing fiber means;

    wherein said intrinsic optical sensing fiber means are for utilizing said excitation light to generate sensor modulated return light as a function of said sensed target objective;

    wherein said optical return means are for conveying said sensor modulated return light away from said intrinsic optical sensing fiber means;

    wherein said optical input means comprises an optical numerical aperture control means, and an excitation optical fiber means;

    wherein said optical numerical aperture control means is for generating modally controlled excitation light from said excitation light, and is also for delivering said modally controlled excitation light to said excitation optical fiber means; and

    wherein said modally controlled excitation light received by said excitation optical fiber means is, on the average, less coaxially aligned with a longitudinal axis of said excitation optical fiber means, than would be the case without said optical numerical aperture control means.

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