Recent advances in quantum dot based lasers and amplifiers at 1.55 μm

Quantum dot (QD) materials offer attractive performances for the development of lasers and amplifiers at 1.55μm. The 3-D quantification of the energy levels in QD leads to several advantages, such as high optical gain and efficiency, low sensitivity to temperature variations, low noise and low linewidth enhancement factor. We shall present in this paper the growth and basic properties of QD materials for lasers and amplifiers, and device performances with particular interest for optical communications and microwave transmission.

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