Method of making stabilized negative thermal expansion optical waveguide substrate and a glass-ceramic substrate
US6362118B1 · kind B1 · utility
13Cited by
18References
14Claims
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Key dates
| Filing date | Apr 20, 2000 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | Apr 20, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention includes methods of stabilizing negative thermal expansion glass-ceramic optical waveguide substrates. The invention includes the stabilized negative thermal expansion glass-ceramic optical waveguide substrates. The stabilized substrates have very stable physical characteristics such as dimensional length when exposed to extreme environments. The stabilized substrates are used to athermalize optical waveguide devices such as optical fiber grating. The stabilized substrates are particularly well suited for providing athermalized fiber Bragg grating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.