Study of neodymium-containing crystalline active elements with discrete and gradient variation of the dopant concentration in the pumping direction

摘要

This paper discusses the operation of active elements with various types of supplementary end heat sinks in a laser based on neodymium-containing crystals with end diode pumping. A comparison is made of heat sinks coupled with the active element and fabricated from an undoped crystal with the same matrix as the active element, as well as crystals with gradient variation of the dopant concentration from zero to a maximum. The types of laser devices in which such elements are suitable are determined.