PM fiber patchcord for 633nm with a 0.5 meter long, 900um OD jacketed, 4/125 PM Fibercore 600HB bot-tie (BT) fiber. One end is terminated with an (WK) wide key FC/APC PM connector. The fiber other end is terminated with a 1.8mm OD ferrule, flat polished and AR coated to minimize reflection. SP: 1) <1dB Connector loss. 2) Miniature length, using OZ Optics ferrule type 5 as shown in Ferrules.CDR, dated October 17, 2000.