Resonant interferometric coupler and method of modifying an optical signal using same
US12366709B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2023 |
| Grant date | Jul 22, 2025 |
| Priority date | — |
| Expiry date | Mar 7, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/56
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is described a resonant interferometric coupler generally having: a substrate; a bus waveguide having in serial connection an input section, a bent section and an output section; a first resonator having a first evanescent coupling point with the input section and a second evanescent coupling point with the output section, the first resonator having first resonances; an interferometer having a first arm path extending along the bent section between the first and second evanescent coupling points, and a second arm path extending along the first resonator between the first and second evanescent coupling points; and a second resonator having a third evanescent coupling point with the bent section, the second resonator having a second resonance overlapping with one of the first resonances and across which a first phase shift is imparted, thereby causing interference at the second evanescent coupling point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.