High density integrated optical chip with low index difference and high index difference waveguide functions
US6915029B2 · kind B2 · utility
3Cited by
11References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2003 |
| Grant date | Jul 5, 2005 |
| Priority date | — |
| Expiry date | Oct 18, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12119
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention features a programmable optical chip. The optical chip has a plurality of optical functions, each of which is connected to a waveguide having a core and a cladding. A photosensitive layer is disposed between at least three of the waveguides, and the photosensitive layer has a refractive index similar to that of the cladding prior to exposure to irradiation. The photosensitive layer changes refractive index upon exposure to irradiation to selectively form an optical connection between at least two of the waveguides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.