Asymmetrical dual-point pumped ceramic Nd:YAG rotary disk laser

Area of Science:

• Laser physics
• Optics and photonics

Background:

• Rotary disk lasers offer potential for high-power applications.
• Improving thermal management is crucial for enhancing laser performance and stability.

Purpose of the Study:

• To investigate asymmetrical dual-point pumping for rotary disk lasers.
• To analyze the impact of pump configuration on laser output and efficiency.

Main Methods:

• A 1064-nm ceramic Nd:YAG rotary disk laser was employed.
• The effects of varying rotation radii and rates of two pumping points were analyzed.
• Performance was compared against symmetrical and single-point pumping configurations.

Main Results:

• Asymmetrical dual-point pumping achieved 10.3-W output power with 32.7% slope efficiency.
• Optimal performance was observed at 800 rpm with specific pump powers and radii (9 mm, 6 mm).
• This method demonstrated superior results compared to other pumping configurations.

Conclusions:

• Asymmetrical dual-point pumping is an effective strategy for improving rotary disk laser performance.
• The technique shows promise for further power scaling and maintaining laser stability.