·Low Insertion Loss ·High Return Loss ·High Environmental Stability ·Fiber-optic Lab Use ·Laser Beam Collimating ·Fiber to Fiber Coupling ·For the production of optical passive devices Performance Specifications: Parameter Premium A Grade Wavelength (nm) 1310+30, 1550+30, 1310/1550+30, 980/1550+30 or custom wavelength Insertion Loss (Typ.) (dB) 0.17 0.2 Insertion Loss (Ma.) (dB) 0.22 0.3 Return Loss (Typ.) 65 60 Beam diameter (mm) <0.5 Operating Temperature( ° C ) 0 ~+75 Storage Temperature ( ° C ) -40 ~+85 Package Dimension 2.40*10mm or 3.2*10mm gold plated SS tube 2.0 * 7mm or 2.78*10mm glass tube or custom size Fiber Type 250um bare fiber or 900um tight buffer