AI Article Synopsis
- Demonstrated a compact and efficient multi-stage pulsed amplifier with an output power of 450 W and high beam quality (M < 1.2) at a repetition rate of 1 MHz.
- Achieved optimal performance using a Yb:YAG thin rod configuration, maintaining effective operation at room temperature.
- Implemented pulse compression using a chirped volume Bragg grating, reducing pulse duration to about 730 fs with a 90% efficiency, making this system valuable for industrial and research applications.
Article Abstract
We demonstrated a compact and power-efficient multi-stage pulsed end-pumped amplifier with stabilized output power of 450 W and near-diffraction-limited beam quality (M < 1.2) at a repetition rate of 1 MHz. The pulsed amplifier produced an exceptional average power and optimal beam quality achieved in laser diode (LD) end-pumped Yb:YAG thin rod configuration at room temperature. A preliminary pulse compression with a chirped volume Bragg grating (CVBG) was performed reducing pulse duration to ∼730 fs at a compression efficiency of 90%. With the combined features, including compactness, reliability, and efficiency, of the end-pumped scheme, the demonstrated laser system would be of great value in both industry and scientific research.
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| http://dx.doi.org/10.1364/OL.505919 | DOI Listing |
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