Collimating of diverging laser diode beam using graded-index optical fiber |
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Authors: | S H Wang C J Tay C Quan H M Shang |
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Abstract: | This paper presents a technique for collimating a diverging beam from a laser diode using graded-index optical fiber. The optical set-up is relatively simple and easy to operate. The results show that laser beam of large divergent angle in the range of 10–35° can be reduced to a fully collimated beam with a divergent angle of less than 0.05°. The theory of the method as well as some experimental results is presented. |
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Keywords: | Graded-index optical fiber Laser diode Collimating technique |
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