High-order-mode filter for semiconductor waveguides
US9465163B2 · kind B2 · utility
8Cited by
25References
15Claims
0Family size
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Key dates
| Filing date | Mar 9, 2015 |
| Grant date | Oct 11, 2016 |
| Priority date | — |
| Expiry date | Mar 9, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/365
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A high-order-mode (HOM) filter for thick silicon waveguides has a shoulder slab, a waveguide ridge, a first filter ridge, and a second filter ridge. The first filter ridge and the second filter ridge help attenuate higher-order modes from the waveguide ridge while the waveguide ridge guides a fundamental mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.