This single-mode optical fiber (SMF, ITU-T. It provides expanded transmission window from 1310nm to 1550nm continuously. Single & Multi Loose Tube Micro Fiber Optic Cables with Single Mode Optical Fiber G-657A / G-652D. Plutovej 7, Hedensted, Denmark. We use cookies to. AIMIFIBER supplies carrier-grade bare optical fiber for cable manufacturing, sensing, and laboratory use. 652D for metropolitan/access networks with low-water-peak performance (1260–1625 nm), or G. This optical fiber is designed and manufactured to meet the requirement in. Enhanced Single-Mode Fibre (G.