Efficient light coupler from off-chip to on-chip waveguides
US7801397B2 · kind B2 · utility
7Cited by
16References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2008 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Feb 14, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4214
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an embodiment, light from a single mode light source may be deflected into a low index contrast (LIC) waveguide in an opto-electronic integrated circuit (OEIC) (or “opto-electronic chip”) by a 45 degree mirror. The mirror may be formed by polishing an edge of the die at a 45 degree angle and coating the polished edge with a metal layer. Light coupled into the LIC waveguide may then be transferred from the LIC waveguide to a high index contrast (HIC) waveguide by evanescent coupling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.