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Updated: Jul 6, 2026

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
Published on: January 7, 2019
Fiber-optic voltage sensor based on a Bi12TiO20 crystal
V N Filippov1, A N Starodumov, Y O Barmenkov
1Centro de Investigaciones en Optica, AC, Loma del Bosque No 115, Col Lomas del Campestre, Apartado Postal 1-948, 37150 Leon, GTO, Mexico. valera@foton.cio.mx
Abstract:
A fiber-optic voltage sensor based on the longitudinal Pockels effect in a Bi(12)TiO(20) crystal is described. The use of a special backreflecting prism as a phase-retarding element is shown to improve the sensitivity and temperature stability of the sensor. A comparison between the temperature properties of the glass backreflecting prism and that of a quarter-wave plate is derived. The sensor demonstrates temperature stability of +/-1.5% from -20 degrees C to 60 degrees C and sensitivity of 0.145% per 1 V(rms) at 850 nm without the use of an additional temperature control channel.
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