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Diode-pumped efficient continuous-wave Yb:Y3Ga5O12 laser at 1035 nm
Yongdong Zhang1, Zhiyi Wei, Qing Wang
1Joint Laboratory of Advanced Technology in Measurement, Institute of Physics, Chinese Academy of Sciences, Beijing, China.
Optics Letters
|February 18, 2011
Summary
A novel diode-pumped Ytterbium-doped Yttrium Gallium Garnet (Yb:YGG) laser achieved high efficiency using a crystal grown by the optical floating zone method. This demonstrates a promising new laser material for efficient laser applications.
Area of Science:
- Laser Physics
- Materials Science
- Solid-State Lasers
Background:
- Ytterbium-doped materials are crucial for efficient laser operation.
- Developing high-quality laser crystals is essential for performance.
- The optical floating zone method offers a path to high-quality crystal growth.
Purpose of the Study:
- To demonstrate an efficient diode-pumped Yb:Y3Ga5O12 (Yb:YGG) laser.
- To investigate the performance of Yb:YGG crystals grown by the optical floating zone method.
- To validate experimental results with theoretical modeling.
Main Methods:
- Growing high-quality Yb:YGG crystals using the optical floating zone method.
- Constructing and operating a diode-pumped Yb:YGG laser system.
- Performing continuous-wave laser power measurements.
- Conducting laser modeling calculations.
Main Results:
- Achieved continuous-wave laser power of 2.65 W under 6.71 W incident pump power.
- Obtained an optical-to-optical efficiency of 39.5%.
- Reached a maximum slope efficiency of 84.5%.
- Experimental and theoretical modeling results showed good agreement.
Conclusions:
- The optical floating zone method yields high-quality Yb:YGG crystals suitable for efficient lasers.
- The demonstrated diode-pumped Yb:YGG laser exhibits excellent performance metrics.
- The study validates the potential of Yb:YGG as a promising gain medium for laser applications.
