Optical detection device with reduced light throughput oscillations
US7420665B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 2005 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | Dec 18, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method is provided to perform an optimized setting of an optical detection device, with the detection device comprising a first and a second waveguide, each having an end face adapted for emitting and receiving light and facing each other in a distance d, and an envelope which at least partially envelopes said distance d and which is adapted for at least partially guiding light between the end sides. The method comprises measuring of a transmission characteristic between the waveguides, which transmission characteristic shows at least one of a minimum and a plateau and which is dependent on the distance d, and setting of the distance d to a working point on the distance d in the minimum or plateau, wherein the variation of the transmission around the working point is low, accordingly the derivation of the measured transmission characteristic is low.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.