Schematic of the refractive index profile and the waveguide mode profile, in the (a) BSW and (b) NAW structures.
(a) Total internal loss and excess temperature evaluated from the experiment (Ref. 4) and (b) contributions to the internal loss in a BSW structure.
(a) Excess temperature and background OCL carrier density in BSW and NAW structures. (b) Total internal loss and contributions to it as functions of current in the NAW structure.
Light-current characteristic and the current dependence of the wall-plug efficiency in the BSW laser structure [from the experiment (Ref. 4)] and in the NAW laser structure (predicted).
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