Open AccessLinear electro-optical effect in silica fibers poled with ultraviolet lamp
Author(s) -
J.A.M. Pereira,
Alexandre R. Camara,
Fredrik Laurell,
Oleksandr Tarasenko,
Walter Margulis
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.014893
Subject(s) - materials science , optics , poling , ultraviolet , silica fiber , optical fiber , optoelectronics , electrode , fiber , excitation , voltage , wavelength , fiber laser , composite material , chemistry , physics , electrical engineering , quantum mechanics , dielectric , ferroelectricity , engineering
A second-order nonlinearity was induced in silica fibers poled by exposure to ultraviolet (UV) radiation and simultaneous high voltage applied to internal electrodes. The UV light source was a tubular lamp with spectral peak at 254 nm. The highest second-order nonlinear coefficient measured through the linear electro-optic effect was 0.062 pm/V. The erasure of the recorded voltage with UV excitation was studied, and the stability of the poled fiber at a temperature exceeding ~400 K was investigated. By eliminating the use of a focused laser beam as excitation source, the technique enables poling many pieces of fiber in parallel.