Beam collimation of the laser diode with a heteroaxial double half-elliptical cylinder lens
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TN31

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    Abstract:

    A new collimation system, the heteroaxial double half-elliptical cylinder lens (HDHECL), is proposed based on the raytracing method, and the collimation performance of the HDHECL is discussed and compared with conventional lenses. The simulation results suggest that the refractive index of the HDHECL can be larger than 2, the collimation effect is improved with the increase of the refractive index in a certain range, and the divergence angle in the fast-axis direction can be compressed to less than 0.01 mrad theoretically. These results are of significance in theory and practice.

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Quan-hua Gao. Beam collimation of the laser diode with a heteroaxial double half-elliptical cylinder lens[J]. Optoelectronics Letters,2010,6(6):435-438

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  • Received:April 01,2004
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