Patents
US 12570573 B2: Optical fiber for temperature sensing, and system and method for measuring temperature
- Granted
- 2026-03-10
- Filed
- 2023-08-24 application 18237658
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A method of measuring temperature includes positioning an optical fiber in contact with an object or in an environment having a temperature to be determined, where the optical fiber comprises a core surrounded by a cladding; the core comprises an alkaline-earth fluorosilicate glass including defects, and the cladding comprises a silica glass. Infrared light is supplied to the optical fiber, thereby electronically exciting the defects. Green light emitted from the defects is detected, and an intensity value of the green light is obtained and converted to a temperature value for the optical fiber, whereby the temperature of the object or environment is determined. The green light may be detected along a length of the optical fiber, and a plurality of intensity values may be converted to a plurality of temperature values along the fiber length, thereby obtaining a distributed measurement of the temperature of the object or environment.
Source: PTBLXML, file of 2026-03-10 (ipgb20260310.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS 1,493 patents | US company or organization | Urbana, IL | THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS Nonprofit EXACT high confidence: identical full name and state | PTBLXML, file of 2026-03-10 |
| CLEMSON UNIVERSITY RESEARCH FOUNDATION 125 patents | US company or organization | Clemson, SC | CLEMSON UNIVERSITY RESEARCH FOUNDATION Nonprofit EXACT high confidence: identical full name and state | PTBLXML, file of 2026-03-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Peter Dragic | Champaign, IL | 13 | PTBLXML, file of 2026-03-10 | |
| Alexander Pietros | Champaign, IL | PTBLXML, file of 2026-03-10 | ||
| John Ballato | Clemson, SC | 12 | PTBLXML, file of 2026-03-10 | |
| Maxime Cavillon | Bourg la Reine, FR | 2 | PTBLXML, file of 2026-03-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C03C | Chemical composition of glasses, glazes or vitreous enamels; surface treatment of glass; surface treatment of fibres or filaments made from glass, minerals or slags; joining glass to glass or other materials | C03C13/04 | PTBLXML, file of 2026-03-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.