Fiber optic patch cord for 633nm. Fiber is a 4/125, 0.11NA polarization maintaining fiber, 3mm Kevlar PVC jacket, 2.2m long, with an FC/APC connector on one end and an angle polished 3.0mm angle compensated ferrules on the other end. (AR2) Both ends of the fiber are AR coated for 630 - 700nm range.