Chinese Optics Letters, 2016, 14 (10): 100602, Published Online: Aug. 2, 2018
Raman scattering enhancement characteristic of NbCl5- and Nb2O5-doped silica fibers
060.2270 Fiber characterization 290.5860 Scattering, Raman 060.2400 Fiber properties 060.2290 Fiber materials
Abstract
Two kinds of Nb-doped silica fibers, an NbCl 5 -doped fiber and an Nb 2 O 5 -doped fiber, are fabricated and characterized in this Letter. First, the refractive index profiles of both fibers are obtained, and then their Raman spectra are measured with 785 nm exciting light. The Nb-doped fibers’ Raman spectra are compared with a conventional GeO 2 -doped single-mode silica fiber that is prepared with the same method and under the same conditions. As a result, the Raman gain coefficients of the Nb-doped silica fiber core are obtained. The experimental results show that Nb 2 O 5 doping can enhance the Raman scattering intensity of the optical fibers.
Pengxiang Yang, Zhenyi Chen, Na Chen, Shupeng Liu, Bo Lu, Tingyun Wang. Raman scattering enhancement characteristic of NbCl5- and Nb2O5-doped silica fibers[J]. Chinese Optics Letters, 2016, 14(10): 100602.