Figure 3
(a) L-I measurements when no mirror is used for feedback compared to the case when an Au mirror is used and device 1 is used for feedback at different back-gate voltages. (b) Power output around threshold current when device 1 is used for feedback and set to different back-gate voltages. (c) Modulated power from the EC-QCL when a square wave voltage is applied to the back-gate of device 1 from VDirac − 60 V to VDirac − 40 V. The laser output power perturbation as measured by a bolometer (black curve) and perturbation voltage simultaneously measured across the QCA (red curve).
