3 meter long, 3mm OD jacket , 405nm, 3/125µ PM fiber patchcord, terminated on the one end with high power mechanically angle cleaved air-gap adjustable FC connector which has the slow axis aligned against connector key (cleaved angle orientation to slow axis within 90°±7°), and the other end with a high power air gap 1.8mm OD metal ferrule that has mechanically angle cleaved coreless end cap and AR coated (400-420nm) tip .