У даній роботі наведені розрахунки стійкості лазерного резонатора при розгляді двох спряжених опорних площин, розташованих нормально до оптичної осі резонатора. Головною фізичною величиною, що аналізується, є лінійний коефіцієнт збільшення.
The problemof forming of the radiation field in laser resonators was investigating in many studies. The consideration of this issue was based on the replacement the task of forming field in a laser resonator onto the task of modeling of spreading radiation in the lens waveguide in the paraxial approximation. Such a model allows us to identify a number of important factors that influence on this process. But the difference between this model and the original laser resonator is that resonator has discrete frequencies of generation, while a continuous range of frequencies can spread in the lens waveguide. In this work the main physical quantity that is analyzing, is the linear increment coefficient in a contrast to the angular increment coefficient that was used inprevious works. This approach requires involving consideration of the two conjugated reference planes which are located perpendicular to optical axis of a resonator (the planes of an object and an image). Their location is limited by an existence of &a minimal optical distance between the object and its real image to the spherical mirror. Such approach allows comparing the previous conditions of stability of a laser resonator with received in this work.
