Strain sensing based on strain to radio-frequency conversion of optical frequency comb

We propose an optical frequency comb (OFC)-based strain sensing method, namely OFC sensing cavity, which is capable of radio-frequency (RF)-based strain measurement. We developed a null-method-based strain sensing system with a comb-spacing-stabilized OFC generator. We realized strain measurement fr...

Full description

Saved in:
Bibliographic Details
Published in:Optics express 2018-04, Vol.26 (8), p.9484-9491
Main Authors: Minamikawa, Takeo, Ogura, Takashi, Nakajima, Yoshiaki, Hase, Eiji, Mizutani, Yasuhiro, Yamamoto, Hirotsugu, Minoshima, Kaoru, Yasui, Takeshi
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We propose an optical frequency comb (OFC)-based strain sensing method, namely OFC sensing cavity, which is capable of radio-frequency (RF)-based strain measurement. We developed a null-method-based strain sensing system with a comb-spacing-stabilized OFC generator. We realized strain measurement from 1.83 µε to 1800 µε with a sensing fiber length of 20 mm. The measurable strain frequency range of the developed strain sensing system was from 0 to 310 Hz. Owing to the use of RF-based strain measurement, our approach would be a useful and powerful tool for sensing of strain or other physical quantities, and the concept of the OFC sensing cavity is a new aspect of OFC technology.
ISSN:1094-4087
1094-4087
DOI:10.1364/oe.26.009484