Quantum well semiconductor lasers are taking over
- 1 November 1989
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Circuits and Devices Magazine
- Vol. 5 (6) , 25-28
- https://doi.org/10.1109/101.41880
Abstract
The author describes the principles and performance of semiconductor quantum-well lasers, which are characterized by confinement of the electrons and holes to extremely thin ( approximately 70 AA) regions. This leads to major improvement in all the operating characteristics of these lasers compared to conventional semiconductor lasers, specifically, to a reduction of more than an order of magnitude in threshold current and a much narrower spectral width.<>Keywords
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