InGaAs vertical-cavity surface-emitting lasers
β Scribed by Geels, R.S.; Corzine, S.W.; Coldren, L.A.
- Book ID
- 117869776
- Publisher
- IEEE
- Year
- 1991
- Tongue
- English
- Weight
- 994 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0018-9197
- DOI
- 10.1109/3.89952
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π SIMILAR VOLUMES
A laser operating at low threshold current is indispensable for the construction of superparallel optical interconnections. Initially we examine the current threshold characteristics of surface emitting InGaAs/GaAs lasers, and demonstrate the possibility for working with a threshold current below 10
Results on a vertical cavity surface emitting laser with InGaAs/GaAs quantum wells and a hybrid AIAs/GaAs Bragg reflector with a metal top mirror are presented. The structure has a threshold current density of 2.1kAcm -2 and a 6% external quantum efficiency (uncorrected for substrate absorption and