Please use this identifier to cite or link to this item: http://ktisis.cut.ac.cy/handle/10488/9255
 Title: Femtosecond-Laser-Based Inscription Technique for Post-Fiber-Bragg Grating Inscription in an Extrinsic Fabry-Perot Interferometer Pressure Sensor Authors: Poeggel, Sven Duraibabu, DineshBabu Babu Lacraz, Amédéé Kalli, Kyriacos Tosi, Daniele Leen, Gabriel Lewis, Elfred Keywords: Fabry Perot interferometer;Femtosecond laser;Fibre Bragg grating;OFPTS;Optical fibre sensor Category: Nano-Technology Field: Engineering and Technology Issue Date: 15-May-2016 Publisher: Institute of Electrical and Electronics Engineers Inc. Source: IEEE Sensors Journal Volume 16, Issue 10, 15 May 2016, Article number 7109831, Pages 3396-3402 metadata.dc.doi: 10.1109/JSEN.2015.2434772 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. URI: http://ktisis.cut.ac.cy/handle/10488/9255 ISSN: 1530437X Rights: © 2001-2012 IEEE Type: Article Appears in Collections: Άρθρα/Articles

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