All solid-state wide beam flat-top laser

Jin Chen, Jiaju Ma, Jianquan Yao, Meng Zhu, Yizhong Yu, Yong Zhang, Peng Wang, Pu Du

Research output: Contribution to journalConference articlepeer-review


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 × 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.

Original languageEnglish
Pages (from-to)331-334
Number of pages4
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2002
Externally publishedYes
Eventhigh-Power Lasers and Applications II - Shanghai, China
Duration: 15 Oct 200218 Oct 2002


  • All solid-state laser
  • Flat-top
  • Gaussian beam
  • Spherical aberration


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