RT (18°C) CW light-current characteristic of the 10 μm diameter 1.3 μm InAs/GaAs quantum-dot GaAs-based oxide-confined (OC) VCSEL: crosses: experimental points, lines: theoretical curves; dash line: the LP01 mode, dot-dash line: the LP11 mode, and solid line: both the LP01 and the LP11 modes. Exactness of an output power measurement is not worse than 0.01 mW and that of an operation current is −0.1 mA.
