[18p-P1-1~5] 3.5 Laser system and materials

▲ [18p-P1-5] High quality 2-μm Q-switched pulsed solid state lasers using spin coating-coreduction approach saturable absorber

〇(B)Sung WeiHeng¹, Jun-Peng Qiao², Peng Lee¹, Chung-lung Wu¹, Meng-Yu Meng-YuWu¹, Hong HongLiu³, Chao-Kuei Lee¹ (1.Department of Photonics, National Sun Yat-sen University, 2.School of Information Science and Engineering, Shandong University, 3.State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University)

Keywords:Bi2Te3, topological insulators, Q-switched solid state laser

In this work, the fabrication process and characterization of topological insulators (TIs) synthesized by the spin coating-coreduction approach (SCCA) are reported. By employing these prepared TIs with different thickness as SAs in 2 μm solid-state Q-switched lasers, thickness-dependent output powers and pulse durations of the laser pulses are obtained and the result also exhibits the stability and reliability from their hourly operation. In comparison with the TISA synthesized by the ultrasound-assisted liquid phase exfoliation (UALPE) method, the experimental results show that lasers with SCCA synthesized TISAs have higher output powers, shorter pulse durations and higher pulse peak powers.