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Wide-angle and broadband polarization converter

  • US 7,583,439 B2
  • Filed: 08/09/2007
  • Issued: 09/01/2009
  • Est. Priority Date: 08/09/2007
  • Status: Expired due to Fees
First Claim
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1. A polarization converter comprising:

  • a polarization beam splitter for receiving a light beam, passing a first polarization wave of the light beam through the polarization beam splitter, and reflecting a second polarization wave of the light beam; and

    a diffraction grating having a reflectivity and a polarization convertible grating for receiving the second polarization wave and reflecting back an elliptically polarized wave having a polarization rotation.

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