Two-dimensional simulation of a high-gain, generalized self-filtering, unstable resonator

Area of Science:

• Laser Physics
• Optical Engineering

Background:

• High-power excimer lasers are crucial for various scientific and industrial applications.
• Unstable resonators are often employed to achieve high energy extraction in these lasers.
• Modeling their performance is essential for optimizing design and operation.

Purpose of the Study:

• To develop and validate a numerical code for modeling high-power excimer laser performance.
• To simulate the behavior of generalized self-filtering unstable resonators.
• To provide a versatile tool for analyzing resonator design and operational parameters.

Main Methods:

• Utilized a numerical code based on the spectral method and Rigrod equations.
• Employed independent propagation algorithms for a general numerical procedure.
• The model accommodates arbitrary resonator geometries and gain medium characteristics.

Main Results:

• The numerical code successfully models the performance of high-power excimer lasers.
• The model accounts for gain medium inhomogeneities and instability phenomena.
• The approach allows for the simulation of various resonator configurations.

Conclusions:

• The developed numerical code offers a general and powerful tool for excimer laser resonator design.
• This modeling capability can lead to improved laser performance and stability.
• The methodology is applicable to a wide range of resonator geometries and conditions.