DMD-Optimized Multimode Fiber (OM3/OM4/OM5): Modern fiber is manufactured with stringent DMD specifications. Here you can submit questions and comments. As far as they get accepted by the author, they will appear above this paragraph together with the author's answer. The author will decide on acceptance. Since DMD is a measure of the fiber's spatio-temporal impulse response, it is important to use an input pulse that approximates a delta function in both space and time. DMD-Tested and Compliant Optical. The new industry standard for spectral loss and geometry View product High speed, high dynamic range mode field diameter, effective area and numerical aperture measurements View product High performance test platform for characterizing laser-optimized multimode fibers View product Fastest available. The Mode Conditioning Patch Cord (MCP) is a duplex multimode patch cord with a short length of single-mode fiber optic cable at the start of the transmission leg, including a single mode to multimode offset fiber optic connection.