Back to results
US 2017/0370723 A1Published application
Electro-optical Phase Modulator Having Stitched-in Vacuum Stable Waveguide with Minimized Conductivity Contrast
OwnerGilbert D. Fekeinventor
Life of this patent
Estimating the term…
Abstract
A Y-branch dual electro-optical phase modulator (YBDPM) has a stitched-in zinc oxide diffused waveguide. It is more vacuum stable and has higher resistance to photorefractive damage than currently used Ti-diffused waveguides. The YBDPM is useful in Fiber Optic Gyroscopes (FOG), especially in low frequencies applications.
Claims18
An optical phase modulator, comprising:
- a lithium niobate substrate;
- a proton-exchanged waveguide section formed on the substrate;
- and
- a zinc oxide diffused stitched-in waveguide section formed on the substrate and optically coupled to the proton-exchanged waveguide section.
1 more element
A fiber optic gyroscope, comprising:
- a light source for generating light;
- a fiber coil through which the light is transmitted;
- and
- an optical phase modulator for modulating the light, wherein the optical phase modulator includes:
- a lithium niobate substrate, a proton-exchanged waveguide section formed on the substrate, and a zinc oxide diffused stitched-in waveguide section formed on the substrate and optically coupled to the proton-exchanged waveguide section.
2 more elements
A method of fabricating an optical phase modulator, comprising:
- providing a lithium niobate substrate;
- forming a proton-exchanged waveguide section on the substrate;
- and
- forming a zinc oxide diffused stitched-in waveguide section on the substrate that is optically coupled to the proton-exchanged waveguide section.
1 more element
Dependencies are inferred from the claim text.