[P-CTh1] C1. Solid State, Fiber, and Other Laser Sources

[P-CTh1-17] Femtosecond Laser Writing Circular Cladding Waveguide in Er:SrF₂ Crystal

Kaixin Liu¹, Zihao Zhang¹, Zhen Zhang², Liangbi Su², Zhiyi Wei³, *Junli Wang¹ (1. Xidian Univ. (China), 2. Shanghai Inst. of Ceramics, Chinese Academy of Sciences (China), 3. Inst. of Physics, Chinese Academy of Sciences (China))

[Presentation Style] Online

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.