Title :
Direct interferometric measurement of nonlinear refractive index of optical fibres by crossphase modulation
Author :
Monerie, M. ; Durteste, Y.
Author_Institution :
Centre National d´Etudes des Télécommunications, LAB/ROC/FOG, Lannion, France
Abstract :
We have computed the nonlinear refractive index of optical fibres from the phase shift resulting from crossphase modulation between a probe signal and a pulsed pump. This phase shift is obtained with a Mach-Zehnder interferometer. Values of 0.92 × 10-13esu for silica and 0.80 × 1013esu for fluorozirconate glasses have been measured.
Keywords :
light interferometry; optical fibres; optical modulation; refractive index measurement; Mach-Zehnder interferometer; SiO2; ZrF4; crossphase modulation; nonlinear refractive index; optical fibres; phase shift; probe signal; pulsed pump;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870676
