Method of inducing maximum non-linearities into silica for phase modulators & switches
US6604387B2 · kind B2 · utility
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14References
15Claims
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Key dates
| Filing date | Aug 7, 1997 |
| Grant date | Aug 12, 2003 |
| Priority date | — |
| Expiry date | Aug 7, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/383
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process of poling a silica material such as an optical fiber whereby electro-optic non-linearities are induced so that the material can function as a phase modulator and switch in optical communications applications. The poling is effected at an elevated temperature on the order of 450° C. or higher, using an electric field on the order of 800 V/&mgr;m or higher for a period of time in the range of one minute to several tens of minutes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.