Characterization of a nanoparticles-doped optical fiber by the use of optical backscatter reflectometry

C. Molardi, S. Korganbayev, W. Blanc, D. Tosi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)


The use of nanoparticles is gaining large interest in modern photonic technology, mainly because nanoparticles can drastically change the properties of optical media. Here, a custom special fiber has been considered for investigation. The fiber presents a co-doped erbium and magnesium oxide nanoparticles core, and standard telecommunication size. Modified Chemical Vapor Deposition technique, together with the spontaneous phase separation, permits to grow inside the core a random distributed pattern of nanoparticles, whose size varies between 20 to 100 nm, considering the transversal section. The nanoparticle increases the scattering, which is, in general, an unwanted occurrence. Nevertheless, interesting applications can emerge in sensor field. In this work the focus has been concentrated on the distributed sensing applications offered by the enhanced backscattering. The fiber has been characterized by the use of an Optical Backscatter Reflectometer (OBR) Luna 4600. Results show that the intensity of backscattering, induced by the nanoparticles, is 50 dB larger than the one shown by standard single mode fiber. This results in an exponential decay of the reflected optical power, which vanish after 1.7 meter of propagation. Moreover, using the OBR, it has been possible to characterize the polarization properties of this special fiber. Because the nanoparticles are stretched during the drawing process, the fiber presents a well-defined polarization signature pattern, with a random alternation of polarization state every, roughly, 10 cm. These properties are promising for creating a distributed, high reflectivity, sensors, in application like OBR spatial multiplexing.

Original languageEnglish
Title of host publicationAdvanced Sensor Systems and Applications VIII
EditorsTiegen Liu, Shibin Jiang
ISBN (Electronic)9781510622401
Publication statusPublished - Jan 1 2018
EventAdvanced Sensor Systems and Applications VIII 2018 - Beijing, China
Duration: Oct 11 2018Oct 13 2018


ConferenceAdvanced Sensor Systems and Applications VIII 2018


  • High scattering fiber
  • Optical backscatter reflectometry
  • Optical fiber sensors
  • Spatial multiplexing.

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Characterization of a nanoparticles-doped optical fiber by the use of optical backscatter reflectometry'. Together they form a unique fingerprint.

Cite this