Fig. 5
From: Shaping the light of VCSELs through cavity geometry design
Spectral and far-field characteristics of VCSELs with different cavity geometries under different current levels. a, c, e, g, i Wavelength-resolved spectra for O-, S-, D-, M-, P-VCSEL, respectively, showing the evolution of emission wavelength with increased current. b, d, f, h, j FFPs at different current levels for O-, S-, D-, M-, P-VCSEL, respectively, demonstrating the evolution of beam profile with increasing drive current for each cavity geometry. Representative cavity shape icons are displayed on the left of each spectra map, with arrows linking to the associated far-fields
