logo

For the Inventor, By the Inventor

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.:

US 10514516 B1

PDFFull Text
Date of Patent:
Dec. 24, 2019

Filed:

Mar. 01, 2018

Semiconductor optical device monolithically integrating optical waveguides with photodiodes having a shared bias pad and apparatus implementing the same

Applicant:

Sumitomo Electric Device Innovations, Inc., Yokohama-shi, JP;

Inventors:

Yoshihiro Yoneda, Yokohama, JP;

Ryuji Masuyama, Yokohama, JP;

Takuya Okimoto, Yokohama, JP;

Assignee:

SUMITOMO ELECTRIC DEVICE INNOVATIONS, INC., Yokohama-shi, JP;

Attorneys:

Baker Botts L.L.P

Michael A. Sartori

Primary Examiner:

Younes Boulghassoul

Int. Cl.
CPC ...
G02B 6/42 (2006.01); G02B 6/26 (2006.01); H01L 31/0232 (2014.01); H01L 31/101 (2006.01); H01L 31/0224 (2006.01); H04B 10/69 (2013.01); H01L 31/0304 (2006.01); H01L 31/105 (2006.01); G02B 6/12 (2006.01);
U.S. Cl.
CPC ...
G02B 6/4295 (2013.01); G02B 6/26 (2013.01); H01L 31/02327 (2013.01); H01L 31/022408 (2013.01); H01L 31/03046 (2013.01); H01L 31/101 (2013.01); H01L 31/105 (2013.01); H04B 10/691 (2013.01); G02B 6/12004 (2013.01);
Abstract

A functional optical device applicable to a coherent optical communication system as a front end device is disclosed. The functional optical device includes a pair of light-receiving elements of a type of waveguide photodiode (PD), a pair of signal pads, a pair of ground pads, a bias pad, and a substrate that monolithically integrates those elements thereon. The light-receiving elements generate a photocurrent complementary to each other in respective anodes thereof; while, receive biases through the bias pad common to the light-receiving elements. Those pads are disposed along an edge of the substrate such that the signal pads put the bias pads therebetween, and the ground pads put the signal pads and the bias pad therebetween.

Find Patent Forward Citations

Loading…