[22p-F408-1~14] 16.1 Fundamental properties, evaluation, process and devices in disordered materials

△ [22p-F408-7] Ultra-low propagation loss in nonlinear-optical glass-ceramic fiber

〇Takuma Nakamura¹, Nobuaki Terakado¹, Yoshihiro Takahashi¹, Takamichi Miyazaki¹, Takumi Fujiwara¹ (1.Tohoku University)

Keywords:Glass-ceramics, Pockels effect, Propagation loss

For introducing light-wave controlling devices to optical fiber network with high reliability, a glass fiber-based device is desired. To date, we have demonstrated the optical modulation based on Pockels effect in fiber-type sample by means of crystallization of a glass fiber. However, the glass-ceramic fiber has a pore, which causes the critical optical propagation loss higher than 10 dB/cm.In this study, we devote to improve the propagation loss lower than 1 dB/cm by filling a pore with the glass phase, whose refractive index is close to the surroundings.