Extra Large Mode Area Triple Clad Fibers The New Frontier In Fibers for Lasers Nufern is expanding its broad range of triple clad fibers with Extra Large Mode Area (XLMA) fibers using Heraeus’ proprietary process for making large core doped glass. The XLMA ytterbium doped fibers provide end users with high absorption and large core areas for multikW, multimode lasers and high pulse energy amplifiers. These fibers are also extremely well suited for making amplified spontaneous emission (ASE) sources with low spatial and temporal coherence which makes them ideal sources for full-field imaging and ranging applications. The fibers are offered with a triple clad geometry enabling multi-kW average powers and multi-MW peak powers. This new class of XLMA fibers is expected to expand the frontiers of fiber lasers, amplifiers and ASE sources in materials processing, imaging and ranging applications. OPTICAL FIBERS FIBER GYRO COILS DEFENSE TECHNOLOGY FIBER LASERS & AMPLIFIERS

Extra Large Mode Area Triple Clad Fibers Optical Attributes Mechanical Attributes • Extra large mode areas – 60 to 200 µm • Excellent dimensional control for splicing into all fiber devices • High absorption – reduced effective lengths, low non-linearities • Triple clad geometry allows for enhanced power handling • High damage threshold for high pulse energies & peak powers • High proof strength for long term mechanical reliability • Low spatial coherence – ASE sources for speckle free imaging • Excellent damp heat resistance • Low temporal coherence & high bandwidth for ranging applications...