Optical waveguide, method for manufacturing optical waveguide, and optical semiconductor device
US12222546B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2020 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Jul 23, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12173
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical waveguide is an optical waveguide including a semiconductor quantum well structure, the optical waveguide including a first region in which the semiconductor quantum well structure is not disordered and a second region in which the semiconductor quantum well structure is disordered. The first region has a first bandgap wavelength, the second region has a second bandgap wavelength, and a region in which the semiconductor quantum well structure is disordered in such a manner that a bandgap wavelength continuously decreases from the first bandgap wavelength to the second bandgap wavelength is provided between the first region and the second region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.