Optical characteristics of nanocrystallized glass fiber with second-order optical nonlinearity

Abstract

Second harmonic generation (SHG) and propagation loss have been measured on nanocrystallized optical fibers of telluritebased glass, 15K 2O·15Nb2O5·70TeO2. The result of the angular dependence of the SHG intensity is discussed based on the difference in the transmission factor varying with the polarization direction. Propagation-loss measurements on the fiber samples by a cut-back method showed low loss compared with that of a typical LiNbO3 waveguide. © 2009 The Ceramic Society of Japan. All rights reserved.