×

Birefringent optical waveguide structure having a strip waveguide buried in a cladding layer and the method of manufacturing

  • US 4,889,401 A
  • Filed: 07/15/1988
  • Issued: 12/26/1989
  • Est. Priority Date: 09/25/1987
  • Status: Expired due to Fees
First Claim
Patent Images

1. A birefringent optical waveguide structure comprising at least one strip waveguide of a first material being buried in a cladding layer of a second material, each strip waveguide having a longitudinal axis, said cladding layer with the strip waveguide being positioned between two additional layers, said first material having an index of refraction higher than the index of refraction of the second material and both of the additional layers applying a mechanical stress on the cladding layer and on each strip waveguide with a component of the stress extending perpendicular to the longitudinal axis of the waveguide.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×