US Patent 7907651 Laser diode

Patent 7907651 was granted and assigned to Sony on March, 2011 by the United States Patent and Trademark Office.

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Edits on 27 Nov, 2023

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Patent abstract

A laser diode capable of effectively inhibiting effects of feedback light is provided. A laser diode includes a substrate, and a laminated structure including a first conductive semiconductor layer, an active layer having a light emitting region, and a second conductive semiconductor layer having a projecting part on the surface thereof, on the substrate, wherein a feedback light inhibition part is provided on a main-emitting-side end face, and effects of feedback light in the vicinity of lateral boundaries of the light emitting region are inhibited by the feedback light inhibition part.

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Patent Inventor Names

Shoji Hirata0

Tsunenori Asatsuma0

Yoshiro Takiguchi0

Edits on 23 May, 2023