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:
Oct. 07, 2014
Filed:
Nov. 29, 2010
Koichiro Adachi, Musashino, JP;
Yasunobu Matsuoka, Hachioji, JP;
Toshiki Sugawara, Kokubunji, JP;
Kazunori Shinoda, Musashino, JP;
Shinji Tsuji, Hidaka, JP;
Koichiro Adachi, Musashino, JP;
Yasunobu Matsuoka, Hachioji, JP;
Toshiki Sugawara, Kokubunji, JP;
Kazunori Shinoda, Musashino, JP;
Shinji Tsuji, Hidaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Specifically, provided is a horizontal-cavity surface-emitting laser including, on a semiconductor substrate: a cavity structure; a waveguide layer; and a reflecting part, wherein a first electrode provided on the semiconductor substrate along side regions of the cavity structure and the reflecting part and a second electrode provided on the main surface of the cavity structure are provided, the first electrode includes an electrode (1) that is provided around one side region of the reflecting part located in the direction intersecting with the traveling direction of light guided through the waveguide layer and an electrode (2) provided around one side region of the cavity structure and the other side region of the reflecting part that are located in the direction parallel with the traveling direction of light guided through the waveguide layer, and the shape of the electrode (2) has different widths at at least two positions.