IdealPhotonics' multimode fiber combiner is a power combining device specifically designed for large-core multimode fibers. It combines multiple multimode optical signals (50/62.5μm core diameter) with low loss (<0.5dB) through fused taper or lens groups, supporting kilowatt-level power transmission (NA matching ≤0.22). It is suitable for high-power lighting, laser medical applications, and industrial processing, among other high-energy transmission scenarios.The "large-core-diameter kilowatt-level power combining" achieves ultra-low loss (<0.4dB) combining of 3-19 multimode fibers (50/62.5μm) through a heat-resistant ablation-resistant fiber bundle structure (power tolerance >1kW) and mode matching design (NA ≤0.22), providing a stable and reliable energy transmission channel for high-power laser medical applications and industrial material processing.