Author:
Liu Kaixin,Zhang Zihao,Zhang Zhen,Su Liangbi,Wei Zhiyi,Wang Junli
Abstract
We report on the use of femtosecond laser to inscribe circular cladding waveguides in Er:SrF2 infrared crystals, and the minimum propagation loss (0.612 dB/cm) of the waveguide is determined at 976 nm wavelength.