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. 2017 Jan 27;6(1):e16199. doi: 10.1038/lsa.2016.199

Figure 3.

Figure 3

Room-temperature CW lasing characteristics. (a,b,c) are spectra at different current levels (left) and the corresponding voltage–current–light output characteristics (right) of three samples with different cavity lengths. (d) Polarization characteristics of the laser emission from another VCSEL at 1 mA. (e) Threshold current as a function of the wavelength for all electrically injected GaN-based VCSELs reported to date. Lasing spectra in ad are offset along the y axis for clarity.