Optical waveguide device module

• Main Authors: TAKEMURA MOTOHIRO, KANNO SHINSUKE
• Format: Patent
• Language: English
• Published: 14.06.2016
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

An optical waveguide device module has an optical waveguide device including an optical waveguide formed in a substrate, and a control electrode for controlling light; and a connection substrate including an interconnection, provided to the outside of the waveguide device, electrically connected to the control electrode. The control electrode includes ground electrodes that sandwich a signal electrode. The connection substrate has ground lines that sandwich a signal line. A width of the signal electrode in an input or output end is smaller than a width of the signal line on the waveguide device side. A distance between inner edges of the ground electrodes closest to the signal electrode, measured at an input or output end of the control electrode, is larger than a distance between inner edges of the ground lines closest to the signal line on the waveguide device side of the connection substrate.