Effect of mode non-orthogonality on statistical properties of light generated by circular grating DBR laser

The aim of this paper is to analyze the influence of mode non-orthogonality on statistical properties of light in circular grating distributed Bragg reflector laser (CG-DBR). The semiclassical approach based on stationary and time-dependent solution of the Fokker–Planck equation has been applied. Numerical results obtained for CG-DBR structure reveal the behavior of statistical parameters of light such as the mean intensity, intensity fluctuations and the laser linewidth as a function of the characteristic parameters of the CG-DBR laser.