Optical fiber coupled photonic crystal slab strain sensor system

Patent metadata

Field	Value
Publication number	US-9086331-B2
Application number	US-201213658307-A
Country	US
Kind code	B2
Filing date	Oct 23, 2012
Priority date	Oct 23, 2012
Publication date	Jul 21, 2015
Grant date	Jul 21, 2015

Abstract

The present disclosure is generally directed to a strain sensor, system and method of fabrication and use that includes an optical fiber, an optical signal generator that transmits an optical signal through the optical fiber, at least two photonic crystal slabs within the optical fiber separated by a first segment of optical fiber, a photo-detector that detects a reflected optical signal from the at least two photonic crystal slabs, and a processor that computes a mechanical strain over the first segment of optical fiber based on the reflected optical signal detected by the photo-detector.

First claim

The invention claimed is:

1. A strain sensor system comprising:
an optical signal generator configured to emit an optical signal;
an optical fiber communicatively connected to the optical signal generator to receive the optical signal therefrom;
at least two photonic crystal slabs disposed within the optical fiber and separated by a first segment of the optical fiber, wherein each of the at least two photonic crystal slabs includes a plurality of holes extending from a first s…

Assignees

• Boeing Co

Inventors

• Carralero Michael A
• Larsen Ty Aaby
• Maratukulam Priya

Classifications

• Y10T29/49826

  Cross-Sectional Technologies · mapped topic

• G01B11/161

  Physics · mapped topic

• G01L1/242 Primary

  Physics · mapped topic

• G02B1/005

  Physics · mapped topic

• Y10T29/49828

  Cross-Sectional Technologies · mapped topic