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. 23, 2014
Filed:
Jun. 17, 2011
Tomoyuki Oki, Kanagawa, JP;
Rintaro Koda, Tokyo, JP;
Masaru Kuramoto, Kanagawa, JP;
Takao Miyajima, Kanagawa, JP;
Hiroyuki Yokoyama, Miyagi, JP;
Tomoyuki Oki, Kanagawa, JP;
Rintaro Koda, Tokyo, JP;
Masaru Kuramoto, Kanagawa, JP;
Takao Miyajima, Kanagawa, JP;
Hiroyuki Yokoyama, Miyagi, JP;
Sony Corporation, Tokyo, JP;
Tohoku University, Miyaki, JP;
Abstract
Provided is an alignment method of a semiconductor optical amplifier with which optimization of coupling efficiency between incident laser light and light waveguide of the semiconductor optical amplifier is enabled without depending on an external monitoring device. The alignment method of a semiconductor optical amplifier is a method that optically amplifies laser light from a laser light source and outputs the optically amplified laser light, which adjusts relative position of the semiconductor optical amplifier with respect to the laser light entering into the semiconductor optical amplifier by flowing a given value of current to the semiconductor optical amplifier while entering the laser light from the laser light source to the semiconductor optical amplifier so that a voltage applied to the semiconductor optical amplifier becomes the maximum.