Method and system for near normal incidence MUX/DEMUX designs
US11022756B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2018 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Oct 12, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/32
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Near normal incidence MUX/DEMUX designs may include an optical demultiplexer coupled to a photonics die, where the optical demultiplexer comprises an input fiber, thin film filters at a first surface of a substrate, a first mirror at the first surface of the substrate, and a second mirror at a second surface of the substrate. The optical demultiplexer may receive an input optical signal comprising a plurality of wavelength optical signals, reflect the input optical signal from the first mirror to the second mirror, reflect the input optical signal from the second mirror to a first of the thin film filters, communicate an optical signal at a first wavelength to the photonics die while reflecting others to the second mirror, reflect the other signals to a second of the plurality of thin film filters, and communicate an optical signal at a second wavelength to the photonics die.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.