Electro-optically tunable microdisk laser on Er3+-doped lithium niobate thin film

作者：Zhu, Yiran; Zhou, Yuan; Wang, Zhe; Fang, Zhiwei^*; Liu, Zhaoxiang^*; Chen, Wei; Wang, Min; Zhang, Haisu; Cheng, Ya^*

来源：Chinese Optics Letters, 2022, 20(1): 011303.

DOI：10.3788/COL202220.011303

• electro-optically tunable microlaser
• Er3+ doping
• lithium niobate
• microdisk

We report an electro-optically (EO) tunable microdisk laser fabricated on the erbium (Er3+)-doped lithium niobate on insulator (LNOI) substrate. By applying a variable voltage on a pair of integrated chromium (Cr) microelectrodes fabricated near the LNOI microdisk, electro-optic modulation with an effective resonance-frequency tuning rate of 2.6 GHz/100 V has been achieved. This gives rise to a tuning range of 45 pm when the electric voltage is varied between -200 V and 200 V.

• 单位
  中国科学院研究生院; y