Grating into a high index contrast strip or channel waveguide
US7346238B2 · kind B2 · utility
1Cited by
6References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 16, 2002 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Sep 6, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/124
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A high index difference coupler includes a high index difference waveguide having one or more modes. A plurality of gratings is formed on the high index difference waveguide. The effective index difference between low index regions and high index regions of the waveguide is greater than 0.3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.