Mode field adapter from a 6/125µm (NA=0.11) polarization maintaining input fiber for 980/1064, (Corning PM-98 U25) to a 20/125µm polarization maintaining LMA fiber with an NA of 0.08 (Liekki Passive 20/125). The device is pigtailed with 1m long, 900µm OD loose tube jacketed fibers with no connectors on either end. Max. I.L.<0.5
