Resonant-mode analysis of single-mode face pumped lasers

Area of Science:

• Laser Physics
• Optics
• Materials Science

Background:

• Optically pumped solid-state lasers are crucial for various applications.
• Understanding resonant modes is key to optimizing laser performance.
• Face-pumped lasers (FPL) offer advantages in thermal management and efficiency.

Purpose of the Study:

• To theoretically investigate and experimentally verify resonant modes in optically pumped solid-state lasers.
• To examine conditions for single transverse-mode operation in electrooptically Q-switched neodymium glass and YAG lasers.
• To analyze resonator configurations, including stable and stable/unstable types.

Main Methods:

• Theoretical investigations of resonant modes.
• Experimental verifications of theoretical models.
• Resonant mode computations using Gaussian quadrature.
• Utilizing a complex non-Hermitian matrix program for calculations.

Main Results:

• Detailed analysis of resonant modes in face-pumped lasers.
• Identification of conditions promoting single transverse-mode operation.
• Comparison of laser performance in different resonator configurations.
• Validation of computational methods through experimental data.

Conclusions:

• The study provides a comprehensive understanding of resonant modes in solid-state lasers.
• Optimal conditions for single transverse-mode operation were determined for specific laser types.
• The computational approach is effective for analyzing laser resonator dynamics.
• Findings contribute to the design and optimization of high-performance lasers.