研究目的
Investigating the performance of a Ce:Nd:YAG laser rod in a solar-pumped laser configuration compared to a Nd:YAG laser rod.
研究成果
The Ce:Nd:YAG laser rod emitted 6 W continuous-wave power at 1064nm, with a collection efficiency of 4.9 W/m2, which was lower than the 10 W and 8.1 W/m2 achieved by the Nd:YAG rod. Despite this, Ce:Nd:YAG can be considered an alternative active medium for solar-pumped lasers, with potential for improvement through further research on co-dopant concentrations and pumping configurations.
研究不足
The Ce:Nd:YAG laser output power was lower than that of the Nd:YAG rod, possibly due to larger scattering loss within the crystal. The experiment was limited by the inhomogeneous heating of the laser rod and the non-uniform absorption pump distribution.
1：Experimental Design and Method Selection:
The study used an end-side-pumped solar laser configuration with a fused silica liquid light guide lens and a conical pump cavity to couple and redistribute concentrated solar radiation into the laser rod.
2：Sample Selection and Data Sources:
Two laser rods were tested - a 5 mm diameter, 30 mm length Ce:Nd:YAG rod and a 5 mm diameter, 30 mm length Nd:YAG rod.
3：List of Experimental Equipment and Materials:
A heliostat-parabolic mirror system, a fused silica liquid light guide lens, conical pump cavity, and laser rods with specific coatings.
4：Experimental Procedures and Operational Workflow:
The laser output performance was tested under varying solar input powers, measured with a power meter.
5：Data Analysis Methods:
The output laser power and collection efficiency were analyzed to compare the performance of the two laser rods.
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