CALCULATION OF THE PROPAGATION CONSTANT OF A LASER MODE IN MULTILAYERQUANTUM-WELL HETEROSTRUCTURES BY THE INCOMING WAVE METHOD

A new method for calculating the complex propagation constant and the lateral field distribution of a diode-laser mode is considered. The me thod utilises the energy balance for a wave incident on a waveguide st ructure. It makes it possible to reduce the procedure of finding the p ropagation constant on a complex plane to a search for solutions on se gments of straight lines lying in this plane and parallel to the real axis. This reduces the computer time and makes it possible to carry ou t effective calculations for complex waveguide structures such as quan tum-well laser heterostructures.