The emission spectra of photonic-quantum-ring lasers can be explained by a three-dimensional Rayleigh–Fabry–Perot cavity resonance model. The proposed model for the emission spectral peaks fits well with the observed blueshift of the emission spectrum envelope as a function of the view angle. Furthermore, we observe that the emission spectra with the high-order mode index showed blueshift behaviors as functions of the injection current, whereas those with the low-order mode index showed redshift behaviors. These phenomena might result in lowering the effective refractive index by the carrier inhomogeneity in the active disk.
© 2006 Optical Society of America
Lasers and Laser Optics
Original Manuscript: June 1, 2005
Manuscript Accepted: August 8, 2005
Sung-Jae An, Joongwoo Bae, Vladimir G. Minogin, and O'Dae Kwon, "Current-dependent spectral blueshift in a three-dimensional photonic-quantum-ring laser," Appl. Opt. 45, 1820-1824 (2006)