Could you please describe your application: LF3GVu,
1, is the emitting source single mode or multimode? what are the parameters i.e. divergence, waist, ... ^VLUZ
2, is the fiber single mode or multimode? what is the NA, core dia,... M $5%QM}
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Generally, fiber coupling efficiency of 40%~90% is reasonable. <=GzK:4L
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Again let us know your specific bug. 5yN8%_)T
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