Construction of integrated mode transformers
US10007060B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2017 |
| Grant date | Jun 26, 2018 |
| Priority date | — |
| Expiry date | Sep 25, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12097
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Fabricating the mode transformer includes forming a cladding trench in a first light-transmitting medium that is included on a wafer. A lateral cladding is formed in the cladding trench such that the lateral cladding becomes an optical cladding on a lateral side of a first tapered portion of a waveguide. A second light-transmitting medium is formed on the wafer such that a portion of the first light-transmitting medium is between a bottom of the trench and the second light-transmitting medium. The second light-transmitting medium is patterned so as to define a second tapered portion of the waveguide over the first tapered portion of the waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.