Interface device for performing mode transformation in optical waveguides
US7680371B2 · kind B2 · utility
21Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2007 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | Mar 10, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/305
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An interface device for performing mode transformation in optical waveguides includes an optical waveguide core for propagating light of a particular wavelength or a plurality of wavelengths. The optical waveguide core terminates in a subwavelength grating configured to change the propagation mode of the light. The subwavelength grating has a pitch sufficiently less than the wavelength of the light to frustrate diffraction. The device can thus serve as an optical coupler between different propagating media, or as an anti-reflective or high reflectivity device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.