2026-10-14T10:27:19Z https://www.scidb.cn/oai

10.57760/sciencedb.07528 2023-02-23T17:03:24Z

2023-02-23 On-chip microdisk laser on Yb3+-doped thin-film lithium niobate doi:10.57760/sciencedb.07528 en We demonstrate an on-chip Yb3+-doped lithium niobate (LN) microdisk laser. The intrinsic quality factors of the fabricated Yb3+-doped LN microdisk resonator are measured up to 3.79 × 105 at 976 nm wavelength and 1.1 × 106 at 1514 nm wavelength. The multi-mode laser emissions are obtained in a band from 1020 nm to 1070 nm pumped by 984 nm laser and with the low threshold of 103 μW, resulting in a slope efficiency of 0.53% at room temperature. Furthermore, the second-harmonic frequency of pump light and the sum-frequency of the pump light and laser emissions are both generated in the on-chip Yb3+-doped LN microdisk benefited from the strong χ(2) nonlinearity of LN. These microdisk lasers are expected to contribute to the high-density integration of LNOI-based photonic chip. On-chip microdisk laser; Yb3+; thin-film lithium niobate ZHOUYUAN WANGZHE FANGZHIWEI LIUZHAOXIANG ZHANGHAISU YINDIFENG LIANGYOUTING ZHANGZHIHAO LIUJIAN HUAGNTING WURONGBO LINJINTIAN WANGMIN CHENGYA PUBLIC https://creativecommons.org/licenses/by-nd/4.0 dataset http://www.doi.org/10.1364/OL.440379 Science Data Bank