The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 2018
Filed:
Feb. 02, 2016
Applicants:
Photonics Electronics Technology Research Association, Tokyo, JP;
The University of Tokyo, Tokyo, JP;
Inventors:
Junichi Fujikata, Tokyo, JP;
Shigeki Takahashi, Tokyo, JP;
Mitsuru Takenaka, Tokyo, JP;
Younghyun Kim, Tokyo, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/015 (2006.01); G02F 1/025 (2006.01); G02F 1/225 (2006.01); G02B 6/12 (2006.01); G02B 6/122 (2006.01); G02F 1/21 (2006.01);
U.S. Cl.
CPC ...
G02F 1/015 (2013.01); G02F 1/025 (2013.01); G02F 1/225 (2013.01); G02B 6/12 (2013.01); G02B 6/122 (2013.01); G02F 2001/0151 (2013.01); G02F 2001/212 (2013.01); G02F 2201/12 (2013.01); G02F 2202/10 (2013.01);
Abstract
An optical phase modulatoraccording to an embodiment of this disclosure comprises a rib-type waveguide structurecomprising: a PN junctioncomprising Si and formed in a lateral direction on a substrate; and a SiGelayerthat is doped with a p-type impurity and comprises at least one layer laminated on the PN junction, so as to be electrically connected to the PN junction