البحث في مجموعات البراءات الوطنية والدولية

1. (WO2010001986) OPTICAL WAVEGUIDE ELEMENT MODULE

Pub. No.:    WO/2010/001986    International Application No.:    PCT/JP2009/062179
Publication Date: 07/01/2010 International Filing Date: 03/07/2009
IPC: G02F 1/03
G02F 1/035
Applicants: SUMITOMO OSAKA CEMENT CO., LTD.
住友大阪セメント株式会社
SHIMIZU, Ryo
清水 亮
SUGAMATA, Toru
菅又 徹
Inventors: SHIMIZU, Ryo
清水 亮
SUGAMATA, Toru
菅又 徹
Title: OPTICAL WAVEGUIDE ELEMENT MODULE
Abstract:
Provided is an optical waveguide element module which suppresses reflection of a modulation signal and attenuation of a modulation signal, even when an impedance of a modulation electrode of an optical waveguide element and an impedance of a transmission line for inputting the modulation signal from the external of the optical waveguide element are different from each other. The optical waveguide element module is provided with an optical waveguide element, which has a substrate (1) composed of a material having electro-optical effects, an optical waveguide (2) formed on the substrate, and a modulation electrode (3) which modules optical waves propagating in the optical waveguide; a connector (8), wherein an external signal line which inputs the modulation signal to the modulation electrode is connected to the modulation electrode; and a relay line which connects the connector and the modulation electrode and is formed on a relay substrate (7).  Impedance of the relay line changes stepwise or continuously, and reflection of the modulation signal in the optical waveguide element module is suppressed.