Request InfoNKT Photonics A/SBIRKERØD, Denmark, Feb. 10, 2011 — The DC-200-40-PZ-YB-03 manufactured by NKT Photonics A/S is a rare-earth-doped ytterbium fiber. The patented polarizing double-clad fiber with coil control features a mode area of more than 650 µm2 while maintaining single-mode beam quality. Because it is polarizing, it delivers an improved polarization extinction ratio compared to polarization-maintaining fibers, according to the company. The multimode pump light is guided by proprietary air-clad technology, ensuring low loss, a high damage threshold and a large numerical aperture that relaxes tolerances on coupling optics and...See full productRelated content from Photonics MediaPRODUCTSPhotonics.com 4/27/2022Tunable Fiber LaserThe SuperK CHROMATUNE fiber laser from NKT Photonics A/S provides gap-free tuning from 400 to 1000 nm. 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