Patent ID: 6038354
Filing Date: 2000-03-14
Classification: G02F

Abstract:
An optical modulator comprising:a substrate exhibiting an electro-optical Pockels effect and having first and second end surfaces opposite to each other,an optical waveguide of a branched interferometer type formed on said substrate and having first and second branched waveguide portions with an input end and a reflection side end respectively exposed in said first and second end surfaces of said substrate,a modulating electrode formed on said substrate in a vicinity of said branched interferometer type optical waveguide, p1 reflection plate mounted on said second end surface of said substrate at an angle of inclination with respect thereto, anda spacer disposed between a side of said reflection plate and said second end surface of said substrate to thereby define the angle of inclination of said reflection plate with respect to said second end surface of said substrate.