0.5m ± 0.05m long, 0.9mm OD jacketed, 4/125µm PM fiber for 633nm, terminated with an angle polished DMI compatible connector on one end and with an 8° polished, 2.5mm OD zirconia FC ferrule with metal flange on the other end. SP2: The 2.5mm OD ferrule endface is polished like an FC/APC connector. The polish axis is aligned to the PM fiber slow axis just like in an FC/APC connector. The PM fiber slow axis is aligned to the metal flange's slots.