Fig. 5: Near- and far-field emission profiles.
From: Single-mode quasi PT-symmetric laser with high power emission
Near-field (left panel) and far-field (right panel) cross sections of the emitted laser beam from the facet of the fabricated laser devices at low (35 mW) and high (400 mW) output power levels. Insets are 2D intensity profiles associated with the emitted beams when the output power is 400 mW. The three different I, II, and III designs, correspond to Wp = 1.7 µm, Wp = 1.9 µm, and Wp = 2.1 µm, respectively
