Method and apparatus for integrated optical fiber sensing with nanometer precision
US7242829B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 1, 2005 |
| Grant date | Jul 10, 2007 |
| Priority date | — |
| Expiry date | Jul 1, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4226
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical package suitable for alignment with a conductively coated optical fiber includes a base having an electrode which forms a capacitance with the conductively coated optical fiber. An optical alignment system computes a capacitance measure when the optical fiber is precisely aligned and further after attachment of the fiber to the package causes a misalignment. The capacitance measures at precise alignment and at misalignment allow computation of a displacement amount from the precise alignment in at least one direction. The optical fiber may be adjusted according to the direction and amount provided by the alignment system to reposition the fiber to its precise alignment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.