HYBRID OPTICAL INTEGRATED CIRCUIT

摘要

PROBLEM TO BE SOLVED: To solve such problems that the conventional hybrid integrated circuit can not satify a low loss optical waveguide function, an optical bench function and a high frequency electric wiring function. SOLUTION: The circuit includes an optical waveguide section 92 which is formed on a substrate 1 and has at least one signal waveguide 92a and at least one monitor optical waveguide 92b, an optical element mounting section which is provided in a gap formed at the tip section or in the middle of the section 92 and an optical functional element which has signal and monitor ports that are used for optical couplings with the waveguides 92a and 92b of the section 92. In the above constitution, the optical functional element is mounted on the optical element mounting section in a state where the waveguide 92a and the signal ports are optically coupled and the waveguide 92b and the monitor ports are optically coupled.