11:15 AM - 11:30 AM
[7a-C14-9] Long-term stability enhancement of Brillouin gain spectrum measurementin plastic optical fibers by mitigating multiple Fresnel reflections
Keywords:plastic optical fiber, Fresnel reflection, Brillouin scattering
For Brillouin-sensing applications, we develop a method of mitigating the Fresnel reflection at the end of perfluorinated plastic optical fibers by covering there with amorphous fluoropolymer (CYTOP; material of the fiber core) dissolved in volatile solvent. Even after the solvent evaporates, the CYTOP layer remains, leading to long-lasting Fresnel reduction.