Sub-40 μA continuous-wave lasing in an oxidized vertical-cavity surface-emitting laser with dielectric mirrors
- 1 August 1996
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 8 (8), 974-976
- https://doi.org/10.1109/68.508708
Abstract
Due to two improvements in cavity design, low-threshold lasing is achieved in oxidized vertical-cavity surface-emitting lasers incorporating upper dielectric distributed Bragg reflectors. Intracavity absorption is reduced by removal of a heavily p-type contact layer and the use of a low-loss MgF-ZnSe upper mirror. We report sub-100 /spl mu/A lasing for a 7-/spl mu/m diameter device, and sub-40 /spl mu/A lasing for a 3-/spl mu/m diameter device. The low-loss cavity design also allows for highly multimode operation at a low-bias current of 600 /spl mu/A in a detuned cavity.Keywords
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