Electromagnetic mode conversion in photonic crystal multimode waveguides
US6563981B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2002 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Jan 31, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/14
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for converting electromagnetic (EM) energy between guided modes of a photonic crystal waveguide having a waveguide axis, the method including: (i) providing the photonic crystal waveguide with a mode coupling segment comprising at least one bend in the waveguide axis, wherein during operation the mode coupling segment converts EM. energy in a first guided mode to a second guided mode; (ii) providing EM energy in the first guided mode of the photonic crystal waveguide; and (iii) allowing the EM energy in the first guided mode to encounter the mode coupling segment to convert at least some of the EM energy in the first guided mode to EM energy in the second guided mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.