Article comprising a two-dimensional photonic crystal coupler and method of making the same
US6975664B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2000 |
| Grant date | Dec 13, 2005 |
| Priority date | — |
| Expiry date | Jan 11, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/11
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A two-dimensional photonic crystal coupler is disclosed, together with a cross-coupled laser structure that is based on a two-dimensional photonic crystal coupler stage. Unlike traditional grating couplers, this two-dimensional photonic crystal coupler can couple light into a single or a plurality of discrete directions in the far-field, i.e., the output light may be unidirectional or discrete. The coupler can be integrated with one-dimensional lasers, a distributed feedback laser, a distributed Bragg reflector laser, and integrated on the same waveguide as the lasers. A resonant cavity coupler design improves the coupling efficiency of two-dimensional photonic crystal-based couplers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.