Ca₂Al₂SiO₇の表面結晶化ガラスの光導波路特性

抄録

Crystalline slab optical waveguides of a calcium aluminosilicate (Ca₂Al₂SiO₇) were prepared by surface crystallization of a glass with close composition, upon heat treatment after an ultrasonic surface treatment (UST). Singlemode and multimode waveguides were obtained, by controlling the depth of the waveguides with both varying heat treatment temperature and time. The refractive index and optical propagation loss of the slab waveguides was also characterized.