Despite its early age, laser based on arrays of self-organized quantum dots modified all the basic commandments of the heterostructure laser. Excitonic gain mechanism and discrete energy spectrum in a quantum dot provide principally new ways to control optical properties of the media. Extension of the spectral range using the same substrate will probably soon lead to the appearance of quantum dot lasers on the market.
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N. N. Ledentsov (1999) studied this question.
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