Journal
OPTICS EXPRESS
Volume 22, Issue 6, Pages 7222-7228Publisher
Optica Publishing Group
DOI: 10.1364/OE.22.007222
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Funding
- United States Air Force Research Laboratory [FA8750-06-1-0085, FA9550-10-1-0276]
- AFOSR Electromagnetics Portfolio of Dr. Arje Nachman
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By optically injecting a quantum dash laser and simultaneously producing a significant lowering of the device threshold, a large enhancement in the differential gain is realized. This effect is observed by way of a dramatic reduction in the linewidth enhancement factor and a large increase in the 3-dB modulation bandwidth, especially as the injection wavelength is blue-shifted. Compared to its free-running value, a 50X improvement in the laser's differential gain is found. (C)2014 Optical Society of America
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