Optical devices having improved temperature stability
US6195191A · kind A · utility
11Cited by
4References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1999 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Aug 19, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/21
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical devices using non-centric crystals, such as lithium niobate, and methods for making and using the devices, are provided. The devices provide improved temperature stability as compared to conventional devices using non-centric crystals. The improved temperature stability is provided by etching the surface of a non-centric crystal to a depth of less than about 300 angstroms. The devices and methods of the invention reduce the magnitude of change in bias voltage required to maintain an optical crystal at a pre-selected operating point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.