scholarly journals Continuous-wave InAs/GaAs quantum-dot laser diodes monolithically grown on Si substrate with low threshold current densities

2012 ◽  
Vol 20 (20) ◽  
pp. 22181 ◽  
Author(s):  
Andrew Lee ◽  
Qi Jiang ◽  
Mingchu Tang ◽  
Alwyn Seeds ◽  
Huiyun Liu
Keyword(s):  
Quantum Dot ◽  
Continuous Wave ◽  
Laser Diodes ◽  
Threshold Current ◽  
Si Substrate ◽  
Quantum Dot Laser ◽  
Low Threshold ◽  
Current Densities ◽  
Gaas Quantum Dot

p-doped 1.3μm InAs∕GaAs quantum-dot laser with a low threshold current density and high differential efficiency

2006 ◽  
Vol 89 (7) ◽  
pp. 073113 ◽  
Author(s):  
H. Y. Liu ◽  
S. L. Liew ◽  
T. Badcock ◽  
D. J. Mowbray ◽  
M. S. Skolnick ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Current Density ◽  
Threshold Current ◽  
Threshold Current Density ◽  
Quantum Dot Laser ◽  
Low Threshold ◽  
Differential Efficiency ◽  
Gaas Quantum Dot

Very-low-threshold current density continuous-wave quantum-dot laser diode

2008 ◽  
Vol 44 (11) ◽  
pp. 679 ◽  
Author(s):  
S. Freisem ◽  
G. Ozgur ◽  
K. Shavritranuruk ◽  
H. Chen ◽  
D.G. Deppe
Keyword(s):  
Quantum Dot ◽  
Laser Diode ◽  
Current Density ◽  
Continuous Wave ◽  
Threshold Current ◽  
Threshold Current Density ◽  
Quantum Dot Laser ◽  
Low Threshold

HIGH-PERFORMANCE RIDGE-WAVEGUIDE MULTI-STACK (N=2, 5 AND 10)InAs/InGaAs/GaAs QUANTUM DOT LASERS of 1.3 μm RANGE

2004 ◽  
Vol 03 (01n02) ◽  
pp. 187-192
Author(s):  
G. LIN ◽  
I. F. CHEN ◽  
F. J. LAY ◽  
J. Y. CHI ◽  
D. A. LIVSHITS ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Ground State ◽  
High Performance ◽  
Continuous Wave ◽  
Spectral Characteristics ◽  
Single Mode ◽  
Threshold Current ◽  
Ridge Waveguide ◽  
Low Threshold ◽  
Gaas Quantum Dot

We have investigated light-current and spectral characteristics of 2-, 5- and 10-stack InAs / InGaAs / GaAs quantum dot (QD) ridge-waveguide lasers grown by MBE. Ultra-low threshold current of 1.43 mA was achieved for 2-stack QD laser. Simultaneous lasing at ground- and excited-states was observed. This effect is accounted for the finite time of carriers capture to the ground-state in QDs. Multi-stack QD structures enables to maintain continuous-wave (CW) ground-state lasing up to the current density of 100×Jth and to achieve the highest output power and efficiency ever recorded for any single-mode lasers of 1.3-μm-wavelength range.

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