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Oxide-confined VCSEL device and the method for making the same

  • US 20040125840A1
  • Filed: 04/01/2003
  • Published: 07/01/2004
  • Est. Priority Date: 12/27/2002
  • Status: Abandoned Application
First Claim
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1. An oxide-confined vertical cavity surface emitting laser (VCSEL) having a selective oxide current confinement region established on the surface of a substrate and an etched groove passing through the selective oxide current confinement region on the VCSEL surface to turn an exposed AlGaAs layer surrounding the selective oxide current confinement region into an insulating aluminum oxide layer, forming an oxide aperture with a low index of refraction, is characterized in that:

  • the etched groove is filled with a filling material to form a filling wall, planarizing the surface of the VCSEL, and a metal electrode is formed across the filling wall on the surface of the VCSEL for providing electrical communications.

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