Journal
APPLIED PHYSICS LETTERS
Volume 112, Issue 12, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.5022480
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- European Office of Aerospace Research and Development (EOARD) [FA9550-15-1-0104]
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This paper reports on the spectral linewidth of InAs/InP quantum dot distributed feedback lasers. Owing to a low inversion factor and a low linewidth enhancement factor, a narrow spectral linewidth of 160 kHz (80 kHz intrinsic linewidth) with a low sensitivity to temperature is demonstrated. When using anti-reflection coatings on both facets, narrow linewidth operation is extended to high powers, believed to be due to a reduction in the longitudinal spatial hole burning. These results confirm the high potential of quantum dot lasers for increasing transmission capacity in future coherent communication systems. Published by AIP Publishing.
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