6 Fiber Type Bow-Tie Polarization Maintaining Singlemode 7 Mode Field Diameter, Nominal 2.8–3.7 µm @633 nm 8 Maximum Attenuation ≤15 dB/km 9 Beat length ≤2 mm 10 Cut-off Wavelength 500–600 nmPublisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps...