Fiber optic patch cord for 633nm. Fiber is a 4/125µm, 0.11 NA polarization maintaining fiber, 900µm jacket, 0.8m 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 - 670nm range.