Tunability enhancement of Yb:YLF based laser

Area of Science:

• Laser physics and materials science.

Background:

• High-quality ytterbium-doped lithium yttrium fluoride (Yb:YLF) crystals are crucial for advanced laser systems.
• Understanding laser efficiency across different polarizations (pi and sigma) is key for optimizing performance.

Purpose of the Study:

• To comprehensively characterize a laser utilizing a heavily doped Yb:YLF crystal.
• To compare laser efficiency concerning absorbed pump power for both pi and sigma-polarizations.
• To enhance the tuning range of a tunable laser by optimizing output coupler transmission.

Main Methods:

• Experimental characterization of a Yb:YLF laser.
• Efficiency measurements for pi and sigma-polarized light.
• Tuning range analysis with variable output coupler transmission.
• Comparison of experimental data with a numerical model.

Main Results:

• Detailed efficiency data for Yb:YLF laser operation under pi and sigma-polarization pumping.
• Demonstrated enhancement of the tunable laser's tuning range by adapting output coupler transmission.
• Validation of experimental findings through comparison with a numerical model.

Conclusions:

• The study provides a thorough analysis of Yb:YLF laser performance.
• Optimizing output coupler transmission is effective in extending the tunable laser's range.
• The numerical model offers insights for future laser design and performance improvements.