Optical device having optical wave guide produced in the presence of acoustic standing wave

摘要

An electro-acoustic transducer (6b) is attached to a block (6a) of optical material, and forms an acoustic standing wave in the block; the acoustic standing wave periodically changes the refractive index of the optical material, and forms high refractive index portions (6c) alternated with low refractive index portions (6d); and the high refractive index portions serve as optical wave guides, and the electro-acoustic transducer easily produces the optical wave guide in the block. <IMAGE>