▎ 摘　　要

NOVELTY - The controller has a polarization controller main body provided with an optical fiber collimator, a laser light source, a polarization detector and a lens. A laser light source emits laser light. The optical fiber collimator collimates the laser light. The lens focuses laser output. A polarization detector receives the laser light. The laser light is adjusted for detecting degree of polarization. Two silver electrodes are produced by a magnetron sputtering preparation process at both ends of a single-layer graphene. USE - Graphene-type polarization controller for a polarization test system. ADVANTAGE - The controller adjusts position of the graphene-type polarization controller main body on an optical axis so as to adjust polarization of the laser, obtains needed laser polarization, and is inexpensive, and has wide polarization adjustment range and better linearity. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a graphene-type polarization controller.