Patent ID: 6574379
Filing Date: 2003-06-03
Classification: G02F

Abstract:
An optical device comprising:an optical device pedestal having opposed first and second surfaces; an optical modulator having a back surface joined to the first surface of the optical device pedestal and a front surface, opposed to the back surface, and on which a first signal electrode pad and a first ground electrode pad are located; a first dielectric substrate having opposed front and back surfaces, the back surface of the first dielectric substrate being located on the first surface of the optical device pedestal, spaced from and at one side of the optical modulator; a first transmission line including a first signal line and a first ground line on the front surface of the first dielectric substrate; respective conductive bumps on surfaces of the first signal line and the first ground line and on surfaces of the first signal electrode pad and the first ground electrode pad of the optical modulator; a second dielectric substrate; and a first connection transmission line including a first signal connection line and a first ground connection line on a front surface of the second dielectric substrate, the first signal connection line and the first ground connection line being opposed to the bumps on the first signal line, the first ground line, the first signal electrode pad, and the first ground electrode pad, the first connection transmission line connecting, through the first signal connection line and the first ground connection line, the bumps on the first signal electrode pad and the first ground electrode pad of the optical modulator with the bumps on the first transmission line.