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Waveguide optical amplifier

  • US 5,847,865 A
  • Filed: 02/18/1997
  • Issued: 12/08/1998
  • Est. Priority Date: 02/18/1997
  • Status: Expired due to Term
First Claim
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1. A waveguide optical amplifier, comprising:

  • a substrate having a substrate surface and a substrate index of refraction;

    an amorphous, unetched active layer containing Zirconium dioxide (ZrO2) and doped with a rare earth material deposited on the substrate surface having an active layer index of refraction, wherein the active layer index of refraction is higher than the substrate index of refraction; and

    a low index of refraction ridge deposited on the active layer and patterned to thereby define an elongated region of optical confinement in the underlying amorphous active layer in a direction perpendicular to a direction of propagation.

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