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. 24, 2013
Filed:
Jul. 14, 2009
Makoto Oota, Miyagi, JP;
Hiroyuki Yokoyama, Miyagi, JP;
Masaru Kuramoto, Kanagawa, JP;
Masao Ikeda, Kanagawa, JP;
Makoto Oota, Miyagi, JP;
Hiroyuki Yokoyama, Miyagi, JP;
Masaru Kuramoto, Kanagawa, JP;
Masao Ikeda, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Tohoku University, Miyagi, JP;
Abstract
A laser diode capable of performing self-pulsation operation, and capable of sufficiently reducing the coherence of laser light and stably obtaining low-noise laser light is provided. A laser diode includes: a laser chip including at least one laser stripe which extends in a resonator length direction between a first end surface and a second end surface opposed to each other, in which the laser stripe includes a gain region and a saturable absorption region in the resonator length direction, and the width of the laser stripe in the saturable absorption region is larger than the width of the laser stripe in the gain region.