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Photonic crystal/waveguide coupler for VCSELS and photodetectors

  • US 7,535,944 B1
  • Filed: 06/03/2004
  • Issued: 05/19/2009
  • Est. Priority Date: 05/26/2000
  • Status: Expired due to Fees
First Claim
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1. An optical coupler comprising:

  • first and second mirrors positioned in different planes, wherein the first mirror is positioned with respect to the second mirror so that a resonant cavity is defined between them;

    a waveguide structure positioned in the resonant cavity and including a photonic crystal coupler structure, wherein the photonic crystal coupler structure is shaped so that first order modes of light incident upon the photonic crystal coupler structure are coupled into the waveguide while zero-order modes are reflected out into the resonant cavity and reflected by the mirror; and

    wherein a thickness of the resonant cavity is selected so that a phase matching condition is satisfied for resonance in the resonant cavity.

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