Long wavelength vertical cavity surface emitting laser

Details Long wavelength vertical cavity surface emitting laser Long wavelength vertical cavity surface emitting laser

2005-05-24

2005-05-24

Harvey, Min Sun (Department: 2828)

Coherent light generators

Long wavelength

C372S043010, C372S044010, C372S045013, C372S046012, C372S049010, C372S049010, C372S049010, C372S050121, C372S092000, C372S096000, C372S099000

Reexamination Certificate

active

06898215

ABSTRACT:
Selectively oxidized vertical cavity lasers emitting at about 1290 nm using InGaAsN quantum wells that operate continuous wave below, at and above room temperature are reported. The lasers employ a semi-insulating GaAs substrate for reduced capacitance, high quality, low resistivity AlGaAs DBR mirror structures, and a strained active region based on InGaAsN. In addition, the design of the VCSEL reduces free carrier absorption of 1.3 μm light in the p-type materials by placing relatively higher p-type dopant concentrations near standing wave nulls.

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