Liquid sensing systems and methods using a ring resonator sensor

US9618693B2 · kind B2 · utility

Assignee

• Infineon Technologies AG · DE

Inventors

• Ventsislav Lavchiev · Linz, AT
• Bernhard Jakoby · Linz, AT
• Ursula Hedenig · Villach, AT
• Thomas Grille · Villach, AT
• Peter Irsigler · Ried im Innkreis, AT
• Thomas Neidhart · Klagenfurt, AT
• Thomas Ostermann · Velden am Wörther See, AT

Key dates

• Filing date: Jun 13, 2014
• Grant date: Apr 11, 2017
• Expiry date: Jun 13, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B6/29338
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A sensor system having a multi-pass interaction region is disclosed. The system includes an input region, a multi-pass region, and an output region. The input region is configured to receive emitted light. The multi-pass region is coupled to the input region and is configured to absorb portions of the emitted light according to a specimen proximate the multi-pass region. The output region is coupled to the multi-pass region and is configured to provide interacted light from the multi-pass region.