VCSEL with improved high frequency characteristics,...

Details VCSEL with improved high frequency characteristics,... VCSEL with improved high frequency characteristics,...

2007-02-15

2009-02-24

Rodriguez, Armando (Department: 2828)

Coherent light generators

Particular component circuitry

Electrode

C372S050124, C372S087000

Reexamination Certificate

active

07496123

ABSTRACT:
A VCSEL including a substrate, a first semiconductor layer of a first conductivity-type formed on the substrate, an active layer formed on the first semiconductor layer, a second semiconductor layer of a second conductivity-type formed on the active layer, a first electrode wiring formed on a main surface of the substrate and electrically connected with the first semiconductor layer, a second electrode wiring formed on the main surface of the substrate and electrically connected with the second semiconductor layer, and a light emitting portion formed on the substrate for emitting laser light. A contact portion at which the first electrode wiring is electrically connected to the first semiconductor layer is formed in a range equal to or greater than π/2 radians and within π radians, centering on the light emitting portion.

REFERENCES:
patent: 2006/0280218 (2006-12-01), Kaneko et al.
patent: 2002-368334 (2002-12-01), None
patent: 2004-47532 (2004-02-01), None

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