Laser Sensor with Fiber Optic Bragg Gratings for Measuring Physical Parameters

  • R. Vázquez Escuela de Ingeniería Ambiental, Universidad de Ciencias y Artes de Chiapas, Tuxtla Gtz., Chiapas, México
  • C. García Escuela de Ingeniería Ambiental, Universidad de Ciencias y Artes de Chiapas, Tuxtla Gtz., Chiapas, México
  • M. May Universidad Autónoma del Carmen, Ciudad del Carmen, Cam. México
  • F. Méndez Universidad Autónoma del Carmen, Ciudad del Carmen, Cam. México
  • J. Camas Instituto Tecnológico de Tuxtla Gutiérrez, Tuxtla Gtz, Chiapas, México

Abstract

We present the operation of a fiber laser sensor made by an Er-bium Doped Fiber pumped at 980nm, an 4.23 km passive fiber and two fiber Bragg gratings placed at the ends of the laser cavity. Under normal conditions, the Bragg gratings have different reflection wavelengths and laser emission is not generated. The two Bragg gratings can be placed at the same reflection wavelength when the grating with the lowest reflective wavelength increases their temperature which can be used as a sensor element. The laser generation thus shows that the Bragg grating is increasing their temperature. We used a Peltier cell in order to gradually change the temperature.

Published
Jun 5, 2010
How to Cite
VÁZQUEZ, R. et al. Laser Sensor with Fiber Optic Bragg Gratings for Measuring Physical Parameters. Revista Cubana de Física, [S.l.], v. 27, n. 1, p. 84-88, june 2010. ISSN 2224-7939. Available at: <http://www.revistacubanadefisica.org/index.php/rcf/article/view/RCF_27-1_84_2010>. Date accessed: 29 mar. 2024.
Section
Original Articles