Novel All-Fiber Devices Based on the Electro-Optic Effect in Poled Fused Silica.

摘要

This report describes research on the study of novel all-fiber devices based on the electro-optic effect in poled fused silica. The focus of the current work was on electro-optically tunable all-fiber waveplates, since they form the basis of the design of a large array of novel all-fiber devices, including all-fiber modulators and all-fiber tunable filters for WDM telecommunications systems. The all-fiber waveplates studied are applicable for the design of in-line phase retarders, in-line polarization controllers, and in- line tunable fiber Bragg gratings, as elucidated in this study. Unfortunately, the highest second-order nonlinearities obtained were < 0.04 pm/V, necessitating operating voltages of several kilovolts, and limiting their applicability to practical telecom devices. Further studies need to be conducted to reliably and reproducibly increase the observed electro-optic nonlinearities before practical implementation of the novel all-fiber devices that were the key targets of the present work.