Thin film filter with waveguide substrate
US7092601B2 · kind B2 · utility
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13References
16Claims
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Key dates
| Filing date | Nov 20, 2003 |
| Grant date | Aug 15, 2006 |
| Priority date | — |
| Expiry date | Nov 20, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/264
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A planar lightwave circuit (PLC) (1; 20) comprises an optical device, where the optical device comprises at least one piece of waveguide structure (5; 24), in particular one piece of fiber, which has at least one thin film layer deposited on an end facet (9; 28). Thus, a thin film filter can be integrated in a PLC with minimized insertion loss and high mechanical stability for athermalization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.