Multichannel optical tap devices
US12164149B2 · kind B2 · utility
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4References
1Claims
0Family size
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Key dates
| Filing date | Sep 30, 2022 |
| Grant date | Dec 10, 2024 |
| Priority date | — |
| Expiry date | Nov 6, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/30
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multiport passive photonic light circuit chip has multiple waveguides written in at least two layers on a glass substrate. Some waveguides connect transmitting and receiving ports of an optical channel, some waveguides redirect a fraction of optical signals to some other receiving ports, and waveguides have circular cross-sectional shapes wherein a refractive index contrast is in the range of 0.2% to 2%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.