ZHANG Xian-liang, YAN Gao-shi. Development of collimating and shaping module of LD laser beam[J]. Journal of Applied Optics, 2008, 29(3): 412-417.
Citation: ZHANG Xian-liang, YAN Gao-shi. Development of collimating and shaping module of LD laser beam[J]. Journal of Applied Optics, 2008, 29(3): 412-417.
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Development of collimating and shaping module of LD laser beam

  • 1.

    National Institute of Measurement and Testing Technology,Chengdu 610021,China;

  • 2.

    School of Optoelectronic Information,University of Electronic Science and Technology of China,Chengdu 610054,China

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    ZHANG Xian-liang

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  • he divergence angles of the single-mode Gauss beam generated by GaAlAs SDL-5400 LD laser in the perpendicular directions are not equal, and there is astigmatism in the beam. In order to obtain the circular light spot with common beam waist, a collimating and shaping module with two semi-cylinder perpendicular lenses and a pair of prisms was designed according to the complex parameterand ABCD-law. The far-field divergence angle of the collimated and shaped LD laser beam, which was calibrated with CCD, was 0.53mrad in the sagittal direction and 0.64mrad in the meridional direction.
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