Laser diode device

Details Laser diode device Laser diode device

2011-06-28

2011-06-28

Nguyen, Dung T (Department: 2828)

Coherent light generators

Particular active media

Semiconductor

C372S043010, C372S044010, C372S046010

Reexamination Certificate

active

07970034

ABSTRACT:
A laser diode device with which a low voltage is realized is provided. The laser diode device includes: a substrate; a semiconductor laminated structure including a first conductive cladding layer, an active layer, and a second conductive cladding layer on one face side of the substrate and having a contact layer as the uppermost layer, in which a protrusion is formed in the contact layer and the second conductive cladding layer; and an electrode provided on the contact layer. The contact layer has a concavo-convex structure on a face on the electrode side, and the electrode is contacted with the contact layer at contact points of a top face, a side face, and a bottom face of the concavo-convex structure.

REFERENCES:
patent: 7606278 (2009-10-01), Kuramoto
patent: 2007/0110112 (2007-05-01), Sugiura
patent: 2007-300016 (2007-11-01), None

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