【刊名】Optik - International Journal for Light & Electron Optics
【作者单位】1 Institute of Medical Physics, Hunan University of Medicine, Huaihua, Hunan 418000, China 2 Department of Physics, Taiyuan Normal University, Jinzhong, Shanxi 030619, China
【摘要】 Single-transverse-mode active waveguide with circularly symmetric cross-section was written in Yb: phosphate glass using slit-shaped infrared femtosecond laser in low repetition rate regime. The refractive index profile reconstructed from the measure...