Dataset for Detection sensitivity of laser feedback interferometry using a terahertz quantum cascade laser

Experimental data: Vsm interferometric fringes for various driving currents, utilised in Fig. 1. Interferometric fringes for various levels of additional cavity attenuation, driving the QCL at 400mA.实验数据：用于图1的、不同驱动电流下的Vsm干涉条纹；以及在400mA电流驱动量子级联激光器（QCL）时，不同额外腔衰减水平下的干涉条纹。