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High-average-power and high-beam-quality Innoslab picosecond laser amplifier
Liu Xu1, Hengli Zhang, Yefei Mao
1School of Optoelectronics, Beijing Institute of Technology, China.
Applied Optics
|October 4, 2012
Summary
We developed a high-efficiency laser amplifier. This picosecond laser system achieved 73 W output power with 28% optical-optical efficiency, demonstrating effective seed laser shaping for superior performance.
Area of Science:
- Optics and Photonics
- Laser Physics
- Materials Science
Background:
- Picosecond lasers are crucial for various scientific and industrial applications.
- Developing high-power, efficient laser amplifiers remains a key research objective.
Purpose of the Study:
- To demonstrate a novel laser-diode, end-pumped picosecond amplifier.
- To achieve high amplified laser output power and efficiency.
Main Methods:
- Utilized a laser-diode, end-pumped architecture.
- Employed effective shaping techniques for the seed laser.
Main Results:
- Achieved 73 W of amplified laser output power.
- Reached an optical-optical efficiency of approximately 28% at 255 W pump power.
- Measured beam propagation factors M(2) of 1.5 (horizontal) and 1.4 (vertical) at 60 W output.
Conclusions:
- The demonstrated laser amplifier exhibits high output power and efficiency.
- Effective seed laser shaping is critical for optimizing amplifier performance.
- The system shows excellent beam quality, suitable for demanding applications.
