Could you please describe your application: gK#mPcn^
1, is the emitting source single mode or multimode? what are the parameters i.e. divergence, waist, ... #ywk|k5z]
2, is the fiber single mode or multimode? what is the NA, core dia,... Gir#"5F
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Generally, fiber coupling efficiency of 40%~90% is reasonable. ')a(.f
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Again let us know your specific bug. hPq%Lc
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