Silicon arrayed waveguide grating device for reducing effective refractive index variation of optical waveguide according to temperature
US7760974B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2007 |
| Grant date | Jul 20, 2010 |
| Priority date | — |
| Expiry date | Apr 10, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/12011
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided is a silicon array waveguide grating (AWG) device comprising a silicon array waveguide in which a plurality of optical waveguides formed of a lower cladding layer, a silicon core, and an upper cladding layer are arranged, wherein the variation of the refractive index of the silicon core is positive, and the upper cladding layer is formed of polymer, the variation of refractive index of which according to temperature is negative, which is opposite to the silicon core, and the cross-section of the silicon core varies between different areas to adjust the variation of the effective refractive index of the optical waveguide according to temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.