Integrated laser and coupled waveguide
US5673284A · kind A · utility
78Cited by
11References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 1996 |
| Grant date | Sep 30, 1997 |
| Priority date | — |
| Expiry date | Aug 21, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4087
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A grating (461) coupling the output of a semiconductor laser (410) in a semiconductor waveguide to a dielectric waveguide (451) having a core (458) which may be efficiently butt-coupled to the core of an optical fiber (470); the laser and semiconductor waveguide, coupling grating, and dielectric waveguide are integrated on a single substrate. Further, multiple lasers (410, 420, 430, 440) with differing lasing frequencies may be integrated and their outputs grating coupled into a single dielectric waveguide (450) for wavelength division multiplexing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.