Oxide-Aperture-Diameter-Dependent RIN Analysis of Vertical-Cavity Surface-Emitting Lasers

Author(s):  
Hui Li ◽  
Philip Wolf ◽  
James A. Lott ◽  
Dieter Bimberg
1996 ◽  
Vol 448 ◽  
Author(s):  
R.D. Twesten ◽  
D. M. Follstaedt ◽  
K. D. Choquette

AbstractThe oxidation of high Al content AlxGa1-xAs has received much attention due to its use in oxide-aperture, vertical-cavity surface emitting lasers (VCSELs) and for passivating AlAs against environmental degradation. We have recently identified the spinel, gamma phase of Al2O3 in layers laterally oxidized in steam at 450°C for =0.98 & 0.92 and have seen evidence for an amorphous precursor to the gamma phase. At the interface with the unoxidized AlxGa1-xAs , an ~17nm amorphous phase remains which could account for the excellent electrical properties of oxide-confined VCSELs and help reduce stress concentrations at the oxide terminus.


2015 ◽  
Vol 32 (4) ◽  
pp. 044202 ◽  
Author(s):  
Hua Wu ◽  
Chong Li ◽  
Min-Fu Han ◽  
Wen-Juan Wang ◽  
Lei Shi ◽  
...  

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