InGaAs/AlGaAs strained single quantum well diode lasers with extremely low threshold current density and high efficiency

1990 ◽  
Vol 57 (4) ◽  
pp. 321-323 ◽  
Author(s):  
H. K. Choi ◽  
C. A. Wang
Keyword(s):  
Quantum Well ◽  
Current Density ◽  
High Efficiency ◽  
Diode Lasers ◽  
Threshold Current ◽  
Threshold Current Density ◽  
Single Quantum ◽  
Single Quantum Well ◽  
Low Threshold

Extremely low threshold current density InGaAs/GaAs/AIGaAs strained SQW laser grown by MBE with As2

1996 ◽  
Vol 74 (S1) ◽  
pp. 1-4 ◽  
Author(s):  
M. Dion ◽  
Z. R. Wasilewski ◽  
F. Chatenoud ◽  
V. K. Gupta ◽  
A. R. Pratt ◽  
...  
Keyword(s):  
Quantum Well ◽  
Current Density ◽  
Threshold Current ◽  
Threshold Current Density ◽  
Single Quantum Well ◽  
Graded Index ◽  
Quantum Well Laser ◽  
Gaas Barrier ◽  
Low Threshold ◽  
Cladding Layers

In this report, we present data on an InGaAs/GaAs strained single quantum well laser with the lowest reported threshold current density to date, namely 44 A cm−2 for a 3 mm cavity length. This was grown by solid-source molecular-beam epitaxy with the arsenic dimer, As2. The structure is that of a graded-index, separate-confinement heterostructure with a single strained InGaAs quantum well, sandwiched between GaAs barrier layers and AlGaAs cladding layers. The wavelength of the lasers was around 985 nm, and the internal efficiency and losses were 69% and 0.70 cm−1, respectively. In addition, data on the uniformity of our lasers, which are grown on rotating 2 in substrates (1 in = 2.54 cm), show drops in photoluminescence emission wavelength and layer thickness of less than 4 nm and 4%, respectively, from the centre to the edge of the wafer and very little compositional change.

Low-threshold-current-density vertical-cavity surface-emitting AlGaAs/GaAs diode lasers

1989 ◽  
Vol 1 (8) ◽  
pp. 205-208 ◽  
Author(s):  
D. Botez ◽  
L.M. Zinkiewicz ◽  
T.J. Roth ◽  
L.J. Mawst ◽  
G. Peterson
Keyword(s):  
Current Density ◽  
Diode Lasers ◽  
Threshold Current ◽  
Threshold Current Density ◽  
Cavity Surface ◽  
Vertical Cavity Surface ◽  
Low Threshold ◽  
Vertical Cavity
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