Single-wavelength fiber laser for localized temperature monitoring

Zachary J. Chaboyer, Jonas Valiunas, Brian Adams, Aicheng Chen, Gautam Das*

*Corresponding author for this work

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We report on a single-longitudinal-mode single-wavelength fiber laser and its applications for measuring localized temperature variation. The laser was developed using a fiber Bragg grating. The laser wavelength was single-longitudinal-mode with optical signal-to-noise ratio (OSNR) of more than 40 dB. The temperature sensitivity of the system was 11.08 pm/°C. To demonstrate the promising application of the laser sensor developed, we used the sensor to monitor the localized temperature of TiO2 nanotubes during the photochemical process, and superparamagnetic iron oxides nanoparticles when exposed to low frequency magnetic field. The output of the laser was monitored using a scanning Fabry-Perot spectrum analyzer of resolution 6.7 MHz and an optical spectrum analyzer of resolution 3.75 GHz.

Original languageEnglish
Pages (from-to)1941-1946
Number of pages6
JournalMicrowave and Optical Technology Letters
Volume52
Issue number9
DOIs
Publication statusPublished - Sep 2010
Externally publishedYes

Keywords

  • Fiber laser
  • Nanoparticles
  • Nanotubes
  • Polarization- maintaining erbium-doped fiber
  • Saturable absorber
  • Single-mode fiber laser
  • Temperature sensor

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