Low threshold fiber taper coupled rare earth ion-doped chalcogenide microsphere laser*
Li Chao-Rana), Dai Shi-Xuna)†, Zhang Qing-Yuanb), Shen Xianga), Wang Xun-Sia), Zhang Pei-Qinga), Lu Lai-Weia), Wu Yue-Haoa)‡, Lv She-Qina)
       
Total output power generated from the ChG microsphere versus the incident pump power.