Temperature sensor based on the power reflected by a Bragg grating in a tapered fiber.
We present a temperature sensor based on two chirped gratings made in optical fibers tapered by fusion. One of the gratings has a metallic shielding and acts as sensor element, whereas the second grating provides a reference signal. The sensor is interrogated by measuring the power reflected by the two gratings, and the system has an accuracy of 0.05 degrees C over a linear operation range of more than 10 degrees C that can be adjusted in the fabrication process.
Monzón-Hernández
David
D
Centro de Investigaciones en Optica Asociación Civil, Loma del Bosque 115, 37150 León Guanajato, México.
Mora
José
J
Pérez-Millán
Pere
P
Díez
Antonio
A
Cruz
José Luis
JL
Andrés
Miguel V
MV