Sensor for measurement of hydrocarbons concentration based on optic fiber

Joanna Pawlat*, Xuefeng Li, Takahiro Matsuo, Yura Zimin, Toshitsugu Ueda

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contribution


    Measuring system based on Photonic Bandgap Fiber (PBGF), which will be able to detect, distinguish and measure the concentration of various aliphatic hydrocarbons is proposed. Such a system can be applied on each stage of fuel evaluation, production, distribution and storage of petroleum products. Aliphatic hydrocarbons absorption spectra show several peaks around 1400-1600 nm wavelength. Thus, tunable lasers with 20 micron core photonic bandgap fiber matching above wavelengths were chosen for the optical measurement system. Measurements were performed at a low pressure to eliminate pressure broadening effect and to sharpen the absorption peaks. The sensitivity of measurement increases with increasing of the fiber's length. Length of fiber was adjusted using several methods. The best results were obtained using argon ion beam cutting. The angled cut was performed to improve signal to noise ratio.

    Original languageEnglish
    Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
    Publication statusPublished - 2009
    EventOptical Measurement Systems for Industrial Inspection VI - Munich
    Duration: 2009 Jun 152009 Jun 18


    OtherOptical Measurement Systems for Industrial Inspection VI


    • Gas sensor
    • Hydrocarbons measurement
    • Methane
    • Photonic bandgap fiber

    ASJC Scopus subject areas

    • Applied Mathematics
    • Computer Science Applications
    • Electrical and Electronic Engineering
    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics


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