9 February 2009 Study on gradient index micro-cylinder lens with gradual focus
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Abstract
The lithography ion-exchange method of producing the gradient index micro-cylinder lens with gradual focus is presented. The lens is developed for the coupled shaping of the pump beam of side-pumped disk fiber laser, its main purpose is to make the LD beam which coupled into the ring disk container and the radial of the ring disk container have a certain angle, and ensure that all the pump beams couple into the interior of the ring disk container through the thin slit of the side. The micro-cylinder lens with different shapes can be obtained by the special designs of ion-exchange windows. The focused spot of the parallel beam passed through the lens is a special curve with required setting. Consequently, the lens also adapt to other applies with gradual focus. The experimental results coincide with the design.
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Jianming Hu, Shouyue Wu, Yu Zhang, Yiping Liang, Teli Dai, "Study on gradient index micro-cylinder lens with gradual focus", Proc. SPIE 7158, 2008 International Conference on Optical Instruments and Technology: Microelectronic and Optoelectronic Devices and Integration, 715803 (9 February 2009); doi: 10.1117/12.811895; https://doi.org/10.1117/12.811895
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