Fabry-Perot resonator using a birefringent crystal
US4198115A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 16, 1978 |
| Grant date | Apr 15, 1980 |
| Priority date | — |
| Expiry date | Aug 16, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/213
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The cleavage planes of a lithium niobate crystal (100) are used to provide the parallel surfaces (121 and 122) of a Fabry-Perot resonator established in a titanium diffused waveguide (110). To enable use of the extraordinary wave and therefore to provide a higher efficiency resonator, the waveguide is diffused into the crystal at a predetermined oblique angle (.PSI.) with respect to the cleaved ends. The resonator is utilized in an optically pumped laser and in an electrically controllable Fabry-Perot resonator wherein the reflection provided by the cleaved ends is supplemented by multilayered dielectric mirrors (201 and 202 or 301 and 302) that are bonded to each of the cleaved ends. In the electrically controllable resonator a dielectric layer (330) is deposited over the surface of the crystal before electrodes (310 and 311) are formed on the layer parallel to the waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.