Femtosecond-Laser-Based Inscription Technique for Post-Fiber-Bragg Grating Inscription in an Extrinsic Fabry-Perot Interferometer Pressure Sensor

Sven Poeggel, Dineshbabu Duraibabu, Amedee Lacraz, Kyriacos Kalli, Daniele Tosi, Gabriel Leen, Elfed Lewis

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

In this paper, a novel fiber Bragg grating inscription technique based on a femtosecond laser is presented. The grating was inscribed in close proximity to the tip of an extrinsic Fabry-Perot interferometer (EFPI)-based optical fiber pressure sensor. This therefore represents an optical fiber pressure and temperature sensor (OFPTS) for simultaneous pressure and temperature measurement for use in exactly the same physical location. The temperature measurement can also be used to compensate thermal drift in the EFPI sensor. The Bragg wavelength can be tailored precisely to any given wavelength in the optical spectrum and the degree of reflection can be adjusted to suit the FPI spectrum. The OFPTS has a diameter of 200 $\mu \text{m}$ and is fully biocompatible. Furthermore, the sensor shows a high stability after grating inscription, of better than 0.5% in 20 min. The small size and high stability makes the sensor especially interesting for volume restricted areas, like blood vessels or the brain.

Original languageEnglish
Article number7109831
Pages (from-to)3396-3402
Number of pages7
JournalIEEE Sensors Journal
Volume16
Issue number10
DOIs
Publication statusPublished - May 15 2016

Fingerprint

Fabry-Perot interferometers
Pressure sensors
Fiber Bragg gratings
pressure sensors
Ultrashort pulses
Bragg gratings
Optical fibers
optical fibers
temperature sensors
Temperature sensors
Temperature measurement
fibers
temperature measurement
sensors
Sensors
gratings
lasers
Wavelength
blood vessels
Blood vessels

Keywords

  • Fabry Perot interferometer
  • Femtosecond laser
  • Fibre Bragg grating
  • OFPTS
  • Optical fibre sensor

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Instrumentation

Cite this

Femtosecond-Laser-Based Inscription Technique for Post-Fiber-Bragg Grating Inscription in an Extrinsic Fabry-Perot Interferometer Pressure Sensor. / Poeggel, Sven; Duraibabu, Dineshbabu; Lacraz, Amedee; Kalli, Kyriacos; Tosi, Daniele; Leen, Gabriel; Lewis, Elfed.

In: IEEE Sensors Journal, Vol. 16, No. 10, 7109831, 15.05.2016, p. 3396-3402.

Research output: Contribution to journalArticle

Poeggel, Sven ; Duraibabu, Dineshbabu ; Lacraz, Amedee ; Kalli, Kyriacos ; Tosi, Daniele ; Leen, Gabriel ; Lewis, Elfed. / Femtosecond-Laser-Based Inscription Technique for Post-Fiber-Bragg Grating Inscription in an Extrinsic Fabry-Perot Interferometer Pressure Sensor. In: IEEE Sensors Journal. 2016 ; Vol. 16, No. 10. pp. 3396-3402.
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