Fiber-optic physical and biochemical sensing based on transient and traveling long-period gratings

Ming Han, Yunjing Wang, Yunmiao Wang, Anbo Wang

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

A fiber-optic sensing platform based on a transient and traveling long-period grating (LPG) in a single-mode optical fiber has been proposed and demonstrated. The LPG is generated by pulsed acoustic waves that propagate along the fiber. First, we demonstrate the LPG for temperature measurement along the fiber. By coating the fiber with ultrathin ionically self-assembled multilayers, we then show that the LPG is capable of detecting nanometer thickness variations of the fiber. A temperature compensation method is also proposed and demonstrated. Because the acoustically generated LPG travels along the fiber, this advance is expected to yield a highly sensitive fully distributed fiber-optic biochemical sensor.

Original languageEnglish (US)
Pages (from-to)100-102
Number of pages3
JournalOptics Letters
Volume34
Issue number1
DOIs
StatePublished - Jan 1 2009

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fiber optics
gratings
fibers
temperature compensation
travel
temperature measurement
platforms
optical fibers
coatings
acoustics
sensors

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Fiber-optic physical and biochemical sensing based on transient and traveling long-period gratings. / Han, Ming; Wang, Yunjing; Wang, Yunmiao; Wang, Anbo.

In: Optics Letters, Vol. 34, No. 1, 01.01.2009, p. 100-102.

Research output: Contribution to journalArticle

Han, Ming ; Wang, Yunjing ; Wang, Yunmiao ; Wang, Anbo. / Fiber-optic physical and biochemical sensing based on transient and traveling long-period gratings. In: Optics Letters. 2009 ; Vol. 34, No. 1. pp. 100-102.
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