1.2m long, 0.25mm OD coated, 7/125 Nufern PM 1950 fiber, 0.2 NA PM fiber with 13mm (±1mm) stripped , 8° polished and AR coated on one end for 1800-2200 nm with Rav< 0.3%. Other end unterminated. (SP). Polished end, keyed to fiber stressed rods. Polishing axis perpendicular to stress rods (PM slow axis) with clocking angle within +/- 6 deg. tolerance.