Optical fiber coupler structure having manufacturing variation-sensitive transmission blocking region
US10955614B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2020 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Jan 14, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L22/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical coupler structures have an insulator layer on a substrate, a waveguide structure in the insulator layer, and a cladding layer on the waveguide structure and the insulator layer. Optical grating couplers are on the cladding layer and the waveguide structure is connected between the optical grating couplers. The waveguide structure is discontinuous between the optical grating couplers. The insulator layer includes an array at a transmission blocking region between discontinuous sections of the waveguide structure. This array can be a void opening array of openings or can be a blocking element array of disconnected elements in the insulator layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.