Coupling of light into a monolithic waveguide device
US6438291B1 · kind B1 · utility
20Cited by
12References
10Claims
0Family size
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Key dates
| Filing date | Dec 3, 1998 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Dec 3, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/30
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical system for coupling light from a monolithic waveguide chip from one optical path to another on different layers of the chip or into or out of the chip along an edge thereof by coupling a GRIN lens to the edge. Coupling a GRIN lens having a reflective end allows light to be launched out of and back into the waveguide chip. Alternatively a GRIN lens having a plurality of fibers coupled thereto can be used to couple signals carried by the fibers into the waveguide chip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.