A novel theoretical procedure to determine absorption and gain coefficients in a symmetric single step-index quantum well laser

Abstract

If the indices nII, nI,III of the regions, the thickness 2a of the active region (AR) and the wavelength A for a single symmetric step-index quantum well laser (SSSIQWL) are given, the normalized propagation constant (NPC) a is obtained. In this novel method, absorption and gain coefficients for the SSSIQWL have been obtained in terms of the NPCs a in the even and odd fields, directly. © TÜBİTAK.