Measurement with 2 m resolution using a Raman-assisted BOTDA sensor featuring 75 km dynamic range
S. M. López, F. Rodriguez-Barrios, Institute of Applied Physics (Spain); A. Carrasco-Sanz, University of Granada (Spain); P. Corredera, Institute of Applied Physics (Spain); J. D. Ania-Castañon, Institute of Optics (Spain), L. Thévenaz, EPFL - Swiss Federal Institute of Technology in Lausanne in Lausanne (Switzerland); M. Gonzalez-Herraez, University of Alcala (Spain)
We have used distributed Raman amplification to extend the measurement distance of a Brillouin Optical Time-Domain Analysis (BOTDA) sensor. We successfully demonstrate a dynamic range of 75 km with 2 meter spatial resolution.
