... key is aligned to slow axis.Fiber Optic Patch cord: (Fiber Optic Patch cord) Applications:PM AmplifiersFiber LasersTest Instrumentation Applications ... traditional passive optic component suppliers, AFR is focusing on PM and high power applications, which differentiate us from ... isolator, circulator, coupler, WDM, PBC, attenuator, fiber optic patch cord, etc. PM version of all those components, and ...