Surface emitting laser element array

Details Surface emitting laser element array Surface emitting laser element array

2011-07-05

2011-07-05

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular active media

Semiconductor

C372S050120, C372S038050

Reexamination Certificate

active

07974327

ABSTRACT:
A surface emitting laser element array comprises a plurality of surface emitting laser elements (15) on a same substrate (1) each comprising a mesa post formed of a laminated structure including an active layer (4) for reducing a crosstalk between the surface emitting laser elements constituting the surface emitting laser element array, and for improving a high speed response, wherein each of the surface emitting laser elements (15) comprises a first electrode (9), a second electrode (10) and a third electrode (11) that have a polarity different from that of the first electrode (9); the first electrode (9) is arranged on the mesa post; the second electrode (10) is arranged on one surface of the substrate (1) same as that of the first electrode (9); the third electrode (11) is arranged on the other surface of the substrate (1) opposite to that of the first electrode and the second electrode (9, 10) and is provided as a common electrode of the surface emitting laser elements (15); and an electric current is applied to the active layer (4) using the first electrode (9) and the second electrode (10).

REFERENCES:
patent: 2006/0227836 (2006-10-01), Omori et al.
patent: 2007/0025407 (2007-02-01), Koelle
patent: 06-291414 (1994-10-01), None
patent: 2003-037336 (2003-02-01), None

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