Highly sensitive long-period fiber-grating strain sensor with low temperature sensitivity

Yi Ping Wang, Limin Xiao, D. N. Wang, Wei Jin

Research output: Journal article publicationJournal articleAcademic researchpeer-review

229 Citations (Scopus)


A long-period fiber-grating sensor with a high strain sensitivity of -7.6 pm// με and a low temperature sensitivity of 3.91pm/°C is fabricated by use of focused CO2 laser beam to carve periodic grooves on a large-mode-area photonic crystal fiber. Such a strain sensor can effectively reduce the cross-sensitivity between strain and temperature, and the temperature-induced strain error obtained is only 0.5 με/°C without using temperature compensation.
Original languageEnglish
Pages (from-to)3414-3416
Number of pages3
JournalOptics Letters
Issue number23
Publication statusPublished - 1 Dec 2006

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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