title: Slow/fast light using a very short Er3+/Yb3+ co-doped fiber.
abstract: A slow/fast light device with a sealed size of 130 mm×30 mm×3 mm has been demonstrated. Ultraslow propagation and superluminal propagation with group velocity values from 8.4 to -14.7 m/s are observed in a 3.86 cm long Er3+/Yb3+ co-doped single-mode phosphate glass fiber. The dependence of pump power, modulation frequency, and wavelength on the slow/fast light effect in this fiber is investigated in detail. These results suggest that this compact slow/fast device is more suitable for all-fiber applications than those made by traditional methods.
authors: State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China.
authors: Jiulin
authors: J
authors: Gan
authors: Jiali
authors: J
authors: Chen
authors: Shanhui
authors: S
authors: Xu
authors: Zhongmin
authors: Z
authors: Yang
authors: Zhonghong
authors: Z
authors: Jiang