Instituto de Óptica "Daza de Valdés" Español | English

Distributed Brillouin Fiber Sensor Assisted by First-Order Raman Amplification  
Descripción:
Distributed optical fiber Brillouin sensors provide innovative solutions for the monitoring of temperature and strain in large structures. The effective range of these sensors is typically of the order of 20–30 km, which limits their use in certain applications in which the distance to monitor is larger. In this work, we have developed a new technique to significantly extend the measurement distance of a distributed Brillouin Optical Time-Domain Analysis (BOTDA) sensor. Distributed Raman Amplification in the sensing fiber provides the means to enhance the operating range of the setup. Three Raman pumping configurations are theoretically and experimentally investigated: co-propagating, counter-propagating and bidirectional propagation with respect to the Brillouin pump pulse. We show that some of the amplification schemes tested can extend the measurement range and improve the measurement quality over long distances. 

Año de Publicación:    2010
Referencia:    Félix Rodríguez-Barrios, Sonia Martín-López, Ana Carrasco-Sanz, Pedro Corredera, Juan Diego Ania-Castañón, Luc Thévenaz, and Miguel González-Herráez, Journal of Lightwave Technology, Vol. 28, Issue 15, pp. 2162-2172 (2010)
Revista:    Journal of Lightwave Technology
Explotación:    No.
 
Investigación financiada por el Ministerio de Ciencia e Innovación y la Agencia Estatal de Investigación
Instituto de Óptica "Daza de Valdés"
(IO-CSIC)
C/ Serrano, 121
28006 Madrid (España)
Tel: 915 616 800
Consejo Superior de Investigaciones Científicas - Instituto de Óptica twitter twitter twitter twitter
Enlaces | Contacto | Aviso legal | Intranet | Instituto de Óptica (CSIC) | Exposición 75 años | Fondo Fotográfico “María Teresa Vigón”