Light coupling from a junction laser int
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E. Weidel
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Article
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1974
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Elsevier Science
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English
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A new method of producing a small cylindrical glass lens on the end of a glass fibre is described. The intensity distribution in the focal plane of such a lens formed on the end face of a monomode fibre was measured. An improvement factor of 2.5 in the coupling efficiency into the fibre from a strip