Paper
5 September 2002 All-solid-state wide-beam flat-top laser
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Abstract
A solid-state laser source with flat-top wide beam profile was designed and made. The laser source was mainly made up of an Nd:YAG solid-state laser at 1064 nm and a maximum 267 x collimating telescope. A 2 W laser diode (LD) pumped Nd:YAG laser with flat-concave cavity was adopted as the primary laser source at 1064 nm. Then the output laser (1064 nm) was injected into a collimating telescope. We designed three schemes according to spherical wave theory and chose the best one based on our experiments. We found out the spherical aberration (including axial and off-axial points) must be corrected. At last, an output laser beam with 80 mm diameter, 0.4 mrad divergence angle, > 50 mW output power, and ±10% intensity distribution of cross section, was obtained.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jin Chen, Jiaju Ma, Jianquan Yao, Meng Zhu, Yizhong Yu, Yong Zhang, Peng Wang, and Pu Du "All-solid-state wide-beam flat-top laser", Proc. SPIE 4914, High-Power Lasers and Applications II, (5 September 2002); https://doi.org/10.1117/12.481820
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KEYWORDS
Nd:YAG lasers

Telescopes

Laser sources

Monochromatic aberrations

Mirrors

Optical pumping

Gaussian beams

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