Optical control sensor system with driver that switches frequencies of a set of different orthogonal signals and modulates the intensity of light

US9222830B2 · kind B2 · utility

Assignee

• Research Foundation for the State University of New York York · US

Inventors

• Anatoliv Borodin · Setauket, US
• William W. Cheng · Redondo Beach, US
• Dmitri Gavrilov · Redmond, US
• Mikhail Gouzman · Lake Grove, US
• Vladislav Kuzminskiy · Coram, US
• Vladimir Smagin · Moskovskiy, RU

Key dates

• Filing date: Jun 17, 2011
• Grant date: Dec 29, 2015
• Expiry date: Aug 4, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G01J1/4257
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A optical control sensor system includes a driver controlling an operation of a light source coupled to an end of an optical fiber, an orthogonal signal generator, generating a set of different orthogonal signals controlling the driver, a terminal sensor coupled to another end of the optical fiber selecting a predetermined set of input orthogonal signals for converting them into component combinations, constituting output signals, and directing the output signals back to the optical fiber, a device coupled to the light sources and to the first end of the optical fiber for extracting output signals that have passed through a return path in the optical fiber, a detector converting optical output signals into electrical signals, and a selector and a decoder connected to the orthogonal signal generator indicating a current state of the optical control sensor system based on an analysis of the selected combinations of components in the output signals.