Laser optimized multimode fiber (LOMMF) with duplex, small form factor ()sff), 1. Single-Mode Fiber: This fiber type is characterized by its narrow core diameter, typically around 8 to 10 microns. We also provide OEM services including customized colors, cable printing, and packaging design for fiber patchcords. Our products have obtained RoHS, UL, and CRP certifications to. Thorlabs offers a variety of step-index and graded-index multimode fiber optic patch cables with standard FC/PC or SMA connectors, including square-core fiber. 5/125 Multimode Optical Fiber Jumper Cords | OFNR OFNP In/Outdoor Duplex LC to LC Fiber Optic Patch Cables. OM1 LC LC Fiber Patch Cable | 1Gb. Have any questions? Talk with us directly using LiveChat.