Analysis of ground state spectral splitting of quantum dot lasers aimed for tunable terahertz generation

2016 ◽  
Vol 33 (10) ◽  
pp. 2114 ◽  
Author(s):  
Zhiyuan Lin ◽  
Guohui Yuan ◽  
Zhuoran Wang
Keyword(s):  
Quantum Dot ◽  
Ground State ◽  
Terahertz Generation ◽  
Quantum Dot Lasers ◽  
Spectral Splitting

scholarly journals Digitally Chirped Multilayer Quantum Dot Lasers with Dual-Wavelength Lasing Emissions

2019 ◽  
Vol 9 (11) ◽  
pp. 2246
Author(s):  
Yi-Jan Sun ◽  
Pin-Hsien Hsieh ◽  
Gray Lin
Keyword(s):  
Theoretical Model ◽  
Quantum Dot ◽  
Ground State ◽  
Slope Efficiency ◽  
Injection Current ◽  
Dual Wavelength ◽  
Quantum Dot Lasers ◽  
Simulation Results ◽  
Current Characteristics

The dual-wavelength lasing emissions of digitally chirped multilayer quantum dot (QD) lasers are investigated both experimentally and theoretically. The two lasing wavelengths are both identified as ground-state (GS) emissions but originated from different stacks of QD multilayers. The lasing spectra exhibited broadening and splitting properties by injecting more current. Moreover, the wavelength-resolved light-current characteristics reveal that first GS lasing intensity upon the threshold of second GS transitions neither saturates nor droops with increasing injection current, but increases with slightly reduced slope efficiency. A theoretical model is developed for digitally chirped multilayer QD lasers. The simulation results qualitatively reproduce the experimental observations.

Analytical model of ground-state lasing phenomenon in broadband semiconductor quantum dot lasers

2013 ◽  
Author(s):  
Vladimir V. Korenev ◽  
Artem V. Savelyev ◽  
Alexey E. Zhukov ◽  
Alexander V. Omelchenko ◽  
Mikhail V. Maximov
Keyword(s):  
Quantum Dot ◽  
Analytical Model ◽  
Ground State ◽  
Quantum Dot Lasers ◽  
Semiconductor Quantum Dot

scholarly journals Effect of excited states on the ground-state modulation bandwidth in quantum dot lasers

2013 ◽  
Vol 102 (19) ◽  
pp. 191102 ◽  
Author(s):  
Yuchang Wu ◽  
Robert A. Suris ◽  
Levon V. Asryan
Keyword(s):  
Quantum Dot ◽  
Excited States ◽  
Ground State ◽  
Quantum Dot Lasers ◽  
Modulation Bandwidth

Understanding Ground-State Quenching in Quantum-Dot Lasers

2015 ◽  
Vol 51 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Andre Rohm ◽  
Benjamin Lingnau ◽  
Kathy Ludge
Keyword(s):  
Quantum Dot ◽  
Ground State ◽  
Quantum Dot Lasers
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