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High-power air-cooled SiC-clad Nd:YVO4 slab lasers
Rui Zhang1, Jinfu Niu, Jianqiu Xu
1Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China.
Optics Letters
|May 20, 2011
Summary
We developed a novel air-cooled, 100 W class silicon carbide-clad neodymium-doped yttrium orthovanadate (Nd:YVO4) laser. This high-power slab laser achieved 83 W of continuous-wave output without water cooling.
Area of Science:
- Laser Physics
- Materials Science
- Thermal Management
Background:
- High-power diode-pumped solid-state lasers generate significant waste heat.
- Efficient heat removal is critical for laser performance and longevity.
- Traditional water cooling systems add complexity and bulk to laser designs.
Purpose of the Study:
- To demonstrate a novel air-cooling method for high-power slab lasers.
- To achieve efficient waste heat removal in a diode-pumped Nd:YVO4 laser.
- To develop a 100 W class laser system without the need for water cooling.
Main Methods:
- Fabrication of a SiC-clad Nd:YVO4 active slab laser using diffusion bonding.
- Utilizing silicon carbide (SiC) plates for efficient heat dissipation.
- Diode edge-pumping configuration for compact laser design.
Main Results:
- Achieved 83 W of continuous-wave (cw) output power.
- Demonstrated a slope efficiency of 27%.
- Successfully operated the laser without active water cooling at room temperature.
Conclusions:
- The SiC-clad Nd:YVO4 active slab laser design enables efficient air cooling.
- This approach offers a viable alternative to water cooling for high-power lasers.
- The developed cooling strategy is novel for diode edge-pumped slab lasers.
