Intensity measurement based temperature-independent strain sensor using a highly birefringent photonic crystal fiber loop mirror

Wenwen Qian, Chun Liu Zhao, Xinyong Dong, Wei Jin

Research output: Journal article publicationJournal articleAcademic researchpeer-review

36 Citations (Scopus)

Abstract

A fiber-optic strain sensor is demonstrated by using a short length of highly birefringent photonic crystal fiber (HiBi-PCF) as the sensing element inserted in a fiber loop mirror (FLM). Due to the ultralow thermal sensitivity of the HiBi-PCF, the proposed strain sensor is inherently insensitive to temperature. When a distributed-feedback (DFB) laser passes through the FLM, the output power is only affected by the transmission spectral change of the FLM caused by the strain applied on the HiBi-PCF. Based on intensity measurement, an optical power meter is adequate to deduce the strain information and an expensive optical spectrum analyzer (OSA) would not be needed.
Original languageEnglish
Pages (from-to)5250-5254
Number of pages5
JournalOptics Communications
Volume283
Issue number24
DOIs
Publication statusPublished - 15 Dec 2010

Keywords

  • Fiber loop mirror (FLM)
  • Highly birefringent photonic crystal fiber (HiBi-PCF)
  • Intensity measurement
  • Strain senor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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