Matrix optical switch for use in local area network, emits light whose energy is larger than band gap of substrate, onto photon injection area between input and output side optical waveguides formed on substrate, through photomask
摘要
<p>A photomask selecting unit selects and arranges a photomask such that each photomask has printed pattern that connects input and output side optical waveguides formed on semiconductor substrate. A light source emits light whose energy is larger than band gap of the semiconductor optical waveguide substrate, onto photon injection area between input and output side waveguides through photomask.</p>
