Optical apparatus and methods of manufacture thereof
US10698164B2 · kind B2 · utility
2Cited by
4References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2018 |
| Grant date | Jun 30, 2020 |
| Priority date | — |
| Expiry date | Jun 12, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12147
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical apparatus 20 for evanescently coupling an optical signal across an interface 30 is described. The optical apparatus 20 comprises a first substrate 22 and a second substrate 24. The optical signal is evanescently coupled between a first waveguide 26 formed by laser inscription of the first substrate 22 and a second waveguide 28 of the second substrate 22. The first waveguide 26 comprises a curved section 34 configured to provide evanescent coupling of the optical signal between the first and second waveguides 26, 28 via the interface 30.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.