Beam shaping and practical methods of reducing loss associated with mating external sources and optics to thin silicon waveguides
US6934444B2 · kind B2 · utility
21Cited by
6References
46Claims
0Family size
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Key dates
| Filing date | Nov 24, 2003 |
| Grant date | Aug 23, 2005 |
| Priority date | — |
| Expiry date | Nov 24, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4226
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A practical realization for achieving and maintaining high-efficiency transfer of light from input and output free-space optics to a high-index waveguide of sub-micron thickness is described. The required optical elements and methods of fabricating, aligning, and assembling these elements are discussed. Maintaining high coupling efficiency reliably over realistic ranges of device operating parameters is discussed in the context of the preferred embodiments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.