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23 February 2018 Pulse-amplitude modulation of optical injection-locked quantum-dot lasers
Yue-Guang Zhou, Cheng Wang
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Proceedings Volume 10526, Physics and Simulation of Optoelectronic Devices XXVI; 1052606 (2018) https://doi.org/10.1117/12.2291338
Event: SPIE OPTO, 2018, San Francisco, California, United States
Abstract
This work theoretically investigates the four-level pulse-amplitude modulation characteristics of quantum dot lasers subject to optical injection. The rate equation model takes into account carrier dynamics in the carrier reservoir, in the excited state, and in the ground state, as well as photon dynamics and phase dynamics of the electric field. It is found that the optical injection significantly improves the eye diagram quality through suppressing the relaxation oscillation, while the extinction ratio is reduced as well. In addition, both the adiabatic chirp and the transient chirp of the signal are substantially suppressed.
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Yue-Guang Zhou and Cheng Wang "Pulse-amplitude modulation of optical injection-locked quantum-dot lasers", Proc. SPIE 10526, Physics and Simulation of Optoelectronic Devices XXVI, 1052606 (23 February 2018); https://doi.org/10.1117/12.2291338
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KEYWORDS
Modulation
Semiconductor lasers
Fiber optic communications
Nonlinear dynamics
Quantum dot lasers
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