Thermal compensation of waveguides by dual material core having positive thermo-optic coefficient inner core
US6987895B2 · kind B2 · utility
11Cited by
15References
25Claims
0Family size
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Key dates
| Filing date | Jul 2, 2002 |
| Grant date | Jan 17, 2006 |
| Priority date | — |
| Expiry date | Feb 5, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/122
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A planar lightwave circuit comprises a waveguide that is thermally-compensating. The waveguide comprises a cladding and a core that comprises two regions running lengthwise through the core. One region has a negative thermo-optic coefficient; the other region has a positive thermo-optic coefficient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.