Could you please describe your application: @y)fR.!)1$
1, is the emitting source single mode or multimode? what are the parameters i.e. divergence, waist, ... :Oy9`vv
2, is the fiber single mode or multimode? what is the NA, core dia,... eB5;wH
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Generally, fiber coupling efficiency of 40%~90% is reasonable. N^:)U"9*e
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Again let us know your specific bug. U%"v7G-
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MANG2004 YJF!_kg.