Laser with electrically-controlled grating reflector
US5504772A · kind A · utility
103Cited by
27References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1994 |
| Grant date | Apr 2, 1996 |
| Priority date | — |
| Expiry date | Sep 9, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/109
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
One or more lasers are combined with optical energy transfer devices and energy guiding devices which use an electric field for control. The optical energy transfer devices may form gratings, mirrors, lenses and the like using a class of poled structures in solid material. The poled structures may be combined with waveguide structures. Electric fields applied to the poled structures control routing, reflection and refraction of optical energy. Adjustable tunability is obtained by a poled structure which produces a spatial gradient in a variable index of refraction along an axis in the presence of a variable electric field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.