Highly sensitive static strain fiber-Bragg grating sensor using an interrogating laser locked to stable atomic lines

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Fiber-Bragg grating (FBG) static strain measurements were performed using a passive interrogation method capable of very high sensitivity and high resolution. Static strain measurements were obtained by locking the laser frequency to an atomic line of potassium. The measured sensitivity of 1.2 nanostrain/√Hz was limited by the environmental noise. The rich spectrum of molecular lines enabled multiplexed sensing by using a set of FBGs whose reflection frequencies matched the molecular absorption lines.

Original languageEnglish
Pages (from-to)p 3
JournalConference on Optical Fiber Communication, Technical Digest Series
StatePublished - 1999

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