High power conversion efficiencies and scaling issues for multimode vertical-cavity top-surface-emitting lasers Lear, Kevin L. ; Kilcoyne, Sean Patrick ; Chalmers, S. A. "This work was supported by the United States Department of Energy under Contract DE-AC04-94AL85000." We report advances in the power conversion efficiencies of vertical-cavity top-surface-emitting lasers defined by proton implantation. Efficiencies as high as 13.4% and 15.8% have been obtained for single-mode and multimode operation, respectively. Scaling issues are addressed including the size dependence of threshold current, series resistance, lasing output power, and power conversion efficiency. We find that devices between 15 μm and 25 μm diameters show the highest power conversion efficiency due to the threshold current not scaling with the conductance and output power. Device geometries with contact apertures both equal to and less than (overlapping) the active region diameter were investigated. Colorado State University. Libraries 1994 text ; image application/pdf ECEkll00033.pdf FACFECEN100383ARTI eng c1994 IEEE
High power conversion efficiencies and scaling issues for multimode vertical-cavity top-surface-emitting lasers
Lear, Kevin L. ; Kilcoyne, Sean Patrick ; Chalmers, S. A.
"This work was supported by the United States Department of Energy under Contract DE-AC04-94AL85000."
We report advances in the power conversion efficiencies of vertical-cavity top-surface-emitting lasers defined by proton implantation. Efficiencies as high as 13.4% and 15.8% have been obtained for single-mode and multimode operation, respectively. Scaling issues are addressed including the size dependence of threshold current, series resistance, lasing output power, and power conversion efficiency. We find that devices between 15 μm and 25 μm diameters show the highest power conversion efficiency due to the threshold current not scaling with the conductance and output power. Device geometries with contact apertures both equal to and less than (overlapping) the active region diameter were investigated.
Colorado State University. Libraries
1994
text ; image
application/pdf
ECEkll00033.pdf
FACFECEN100383ARTI
eng
c1994 IEEE