Microdisk lasers on an erbium-doped lithium-niobite chip

• 作者: Qiang Luo ZhenZhong Hao Chen Yang Ru Zhang DaHuai Zheng ShiGuo Liu HongDe Liu Fang Bo YongFa Kong GuoQuan Zhang JingJun Xu
• 来源期刊: 中国科学：物理学 力学 天文学（英文版）
• 年，卷（期）: 2021,（3）
• 所属期刊栏目: Editor's Focus
• 页码范围: 7-11
• 页数: 5页
• 语种: 英文

摘要

Lithium niobate on insulator (LNOI) provides a platform for the fundamental physics investigations and practical applications of integrated photonics.However,as an indispensable building block of integrated photonics,lasers are in short supply.In this paper,erbium-doped LNOI laser in the 1550-urn band was demonstrated in microdisk cavities with high quality factors fabricated in batches by UV exposure,inductively coupled plasma reactive ion etching,and chemomechanical polishing.The threshold and conversion efficiency of the erbium-doped LNOI microdisk laser were measured to be lower than 1 mW and 6.5× 10-5％,respectively.This work will benefit the development of integrated photonics based on LNOI.