Light-emitting intra-cavity interferometric sensors

US8218151B2 · kind B2 · utility

Assignee

• Tel Aviv University Future Technology Development Ltd. · IL

Inventors

• Asher Peled · Maalot Tarshiha, IL
• Menachem Nathan · Nes Ziona, IL
• Shlomo Ruschin · Herzliya, IL
• Yifaat Betzalel · Givatayim, IL
• Judith Rishpon · Rehovot, IL

Key dates

• Filing date: Mar 12, 2009
• Grant date: Jul 10, 2012
• Expiry date: Sep 29, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2021/7779
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Light-emitting intra-cavity interferometric (ICI) optical sensors based on channel waveguide structures which include an internal light emitting material and a functionalized region. In some embodiments, the waveguides are made of a sol-gel which incorporates the light emitting material. In some embodiments, the waveguide structure includes an ICI resonator backbone and the ICI sensor is a laser sensor. In some embodiments, the resonator backbone has an interferometric Y-branch shape. In some embodiments, the resonator backbone has a Mach Zehnder interferometer shape. In some embodiments, an ICI laser sensor has an interferometric arrayed waveguide grating shape. In some embodiments, an ICI sensor may be remotely optically pumped and remotely read.