Search, find, compare and shop for Multi-Mode Fibers on FindLight. Contact suppliers directly with one click. Thorlabs offers multimode fiber bundles in straight, bifurcated (Y-cable), or fan-out configurations and round or linear bundle end configurations. Perfect for SAN networks, servers, and enterprise installations. These fibers are low-OH fibers, which influences their. be arranged on a ring around the fiber axis or on some 2D grid. 100% end-face, 3D interferometer, IL&RL tested.