Wavelength selective optical add/drop multiplexer and method of manufacture
US6665476B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2001 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | Aug 28, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/42
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
One embodiment of the present invention is an exemplary wavelength selective optical coupling device. This exemplary device includes two waveguides, a ring or disc resonator, and resonator coupling elements. The waveguides are disposed on top of a substrate, not in contact with each other. The waveguides may transmit multiple wavelengths of light. The ring or disc resonator includes a dielectric member which extends parallel to the top of the substrate and overlaps, without contacting, the waveguides. The resonator is sized to resonate at a subset of resonant wavelengths. The resonator coupling elements couple the resonator to the substrate. The resonator coupling elements may include a bridge coupled to the top surface of the substrate and electrically coupled to control circuitry within the substrate. A waveguide coupling signal from the control circuitry causes the bridge to deform, translating the resonator up and down, thereby intermittently coupling and decoupling the waveguides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.