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Dichroic beamsplitter for high energy laser diagnostics

  • US 8,009,283 B2
  • Filed: 05/25/2009
  • Issued: 08/30/2011
  • Est. Priority Date: 05/23/2008
  • Status: Expired due to Fees
First Claim
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1. A system, comprising:

  • an optical cavity resonant at a first wavelength;

    a probe laser for producing a probe beam at a second wavelength;

    a beam splitter (BS) and a deformable mirror located in said cavity, said BS having a first surface with a dichroic coating, said BS having a second surface with an antireflection coating;

    an optical flat designed to reflect said second wavelength; and

    a wavefront sensor (WFS);

    wherein said probe beam is operatively positioned to be aligned for transmission through said BS and then to be reflected from said flat, wherein a first portion of said probe beam reflected from said flat will propagate through said BS to said WFS, wherein a second portion of said beam will be reflected by said dichroic coating and make one complete oscillation through said cavity and then propagate to said WFS.

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