Title:
OPTICAL WAVEGUIDE ELEMENT
Document Type and Number:
WIPO Patent Application WO/2014/157458
Kind Code:
A1
Abstract:
In order to provide an optical waveguide element that can suppress damage to a substrate during the process of connecting electric connective wiring to a control electrode, an optical waveguide element that includes a substrate exhibiting an electro-optic effect, an optical waveguide formed on the substrate, and a control electrode (for example, a signal electrode) for controlling a lightwave conveyed through the optical waveguide, is characterized in that: the control electrode imparts direct voltage; the thickness of the electrode is equal to or less than 10μm; a connection pad, which is formed on a part of the control electrode, is included in order to electrically connect the control electrode and an external electric circuit; the surface area of the planar surface of the connection pad is equal to or greater than 22000μm2; and the whole thickness of the connection pad is greater than 10μm.
Inventors:
FUJINO TETSUYA (JP)
ICHIMEI HIDEKI (JP)
TAKEMURA MOTOHIRO (JP)
ICHIMEI HIDEKI (JP)
TAKEMURA MOTOHIRO (JP)
Application Number:
PCT/JP2014/058750
Publication Date:
October 02, 2014
Filing Date:
March 27, 2014
Export Citation:
Assignee:
SUMITOMO OSAKA CEMENT CO LTD (JP)
International Classes:
G02F1/035
Foreign References:
| JP2009244629A | 2009-10-22 | |||
| JP2002196295A | 2002-07-12 | |||
| JP2012128007A | 2012-07-05 | |||
| JPS6119136A | 1986-01-28 | |||
| JPH11307601A | 1999-11-05 |
Attorney, Agent or Firm:
TAMURA Chikashi et al. (JP)
Tamura 爾 (JP)
Tamura 爾 (JP)
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