... .9 , 2.0 , 3.0 mm , etc2.Type: Single - Mode ( 9/125 um ) , Multi - Mode ( 50/125 um , 62.5 / 125 um , )3 ... depend on user's requirements Technical Parameters : 1 . Insertion Loss ( Single - Mode : PC ≤ 0.2 db ,APC ≤ 0.3 db , Multi ... ≤ 0.3 db ) . 2 . Return Loss ( Single - Mode : PC ≥ 50 db , APC ≥ 50 db , Multi - Mode : PC ≥ 453.Working Temperature: -40~+75°C4 ...