Waveguide and guided-wave devices consisting of heterostructured photonic crystals

摘要

We report a strategy of industrialization of photonic-crystal based optical devices: We first review requirements for passive photonic crystal components. Although they have remarkable properties, they have at the same time severe difficulties such as difficulty of practical coupling to/from optical fibers and a relatively large propagation loss. This paper present an approach of meeting the requirements using heterostructured photonic crystals fabricated by autocloning. Waveguides and resonators consisting of Ta{sub}2O{sub}5/SiO{sub}2 photonic crystal are demonstrated. After dicing and polishing, the waveguide can be butt-jointed with an optical fiber and the loss is estimated as 1.3 dB/mm. A resonator with Q=270 is also demonstrated