Medición distribuida de presencia de gases en fibras ópticas huecas mediante efecto fototérmico
- Andrés García Ruiz
- Juan Pastor Graells
- Hugo F. Martins
- Kenny Hey Tow
- Luc Thevenaz
- Sonia Martins López
- Miguel González Herráez
- Germán Ros Magán (coord.)
- Antonio Guerrero Ortega (coord.)
- Cristina Tejedor Martínez (coord.)
- Francisco Pascual Vives (coord.)
- Paloma Ruíz Benito (coord.)
- Vanessa Tabernero Mago (coord.)
Verlag: Editorial Universidad de Alcalá ; Universidad de Alcalá
ISBN: 978-84-16599-48-6
Datum der Publikation: 2017
Seiten: 229-236
Kongress: Jornadas de Jóvenes Investigadores de la Universidad de Alcalá (6. 2017. null)
Art: Konferenz-Beitrag
Zusammenfassung
Chirped-pulse phase-sensitive optical time domain reflectometry has shown a remarkable performance when applied to dynamic measurements of strain and temperature, recently reaching ranges of several kilometers while interrogating the fiber at acoustic frequencies. In this work, its sensitivity, fast response, and high spatial resolution are exploited to implement a proof-of-concept of a selective distributed chemical sensor based on the photothermal effect. The presented scheme is able to perform distributed spectroscopic measurements of acetylene presence along a 10s.