Frédéric Grillot, D. Arsenijevic, H. Huang, D. Bimberg,
https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10543/105430M/Ultrafast-and-nonlinear-dynamics-of-InAs-GaAs-semiconductor-quantum-dot/10.1117/12.2299678.short
Quantum dot nanostructures are one of the best
practical examples of emerging nanotechnologies hence offering superior
properties as compared to their quantum well counterparts. InAs/GaAs quantum
dots allow producing energy- and cost-efficient devices with outstanding
temperature stability, lowest threshold current, ultrafast gain dynamics, and
low amplified spontaneous emission. This paper reports on the recent
achievements in ultrafast and nonlinear dynamics properties of InAs/GaAs
quantum dot lasers for radar systems, wireless communications and high-speed
optical communications. Passive mode-locking is shown to exhibit a great
potential for microwave, millimeter-wave and Terahertz signal generation with
high repetition frequency tuning and jitter reduction. The optical feedback is
also used to stabilize the pulse emission leading an integrated timing jitter
as low as 90 fs without consuming additional power. Lastly, multimode optical
feedback dynamics of InAs/GaAs QD lasers emitting on different lasing states is
also studied. In particular, a chaos free operation is observed for the first
time from the ground state lasing operation.
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