Highly sensitive dynamic strain measurements by locking lasers to fiber Bragg gratings

B. Lissak*, A. Arie, M. Tur

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

A novel, sensitive, simple, and robust strain interrogation technique is analyzed and experimentally tested. By locking a laser wavelength to the midreflection wavelength of a standard fiber Bragg grating and measuring the error signal, we achieve high dynamic strain sensitivity of 45 picostrain/ √Hz rms at 3 kHz, where the dominant noise in the experiment is the laser frequency noise.

Original languageEnglish
Pages (from-to)1930-1932
Number of pages3
JournalOptics Letters
Volume23
Issue number24
DOIs
StatePublished - 15 Dec 1998

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