Pingyang Zeng, J. Wu, Di Xia, Zelin Yang, Yaodong Sun, Yufei Huang, Jiaxin Zhao, Huanjie Cheng, Bin Zhang, Zhaohui Li
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High quality factor chalcogenide microresonators with low parametric oscillation threshold
We demonstrated high-quality-factor (Q) chalcogenide (Ge-Sb-S) microresonators with intrinsic Q of 1.9×106 through an improved fabrication process, which enables a low optical parametric oscillation (OPO) threshold of 3.5 mW.