Soliton microcombs (SMCs) are spontaneously formed in a coherently pumped high-quality microresonator, which provides a new tool for use as an on-chip frequency comb for applications of high-precision metrology and spectroscopy. However, generation of SMCs seriously relies on advanced experimental techniques from professional scientists. Here, we experimentally demonstrate a program-controlled single SMC source where the intracavity thermal effect is timely balanced using an auxiliary laser during single SMC generation. The microcomb power is adopted as the criteria for microcomb states discrimination and a forward and backward thermal tuning technique is employed for the deterministic single SMC generation. Further, based on a closed-loop control system, the repetition rate stability of the SMC source improved more than 20 times and the pump frequency can be continuously tuned by simply changing the operation temperature. The reliability of the SMC source is verified by consecutive 200 generation trials and maintaining over 10 h. We believe the proposed SMC source will have significant promising influences in future SMC-based application development.

中文翻译：

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程控单孤子微梳源

孤子微梳（SMC）在相干泵浦的高质量微谐振器中自发形成，这提供了一种用作高精度计量和光谱学应用的片上频率梳的新工具。但是，SMC的产生严重依赖于专业科学家的先进实验技术。在这里，我们通过实验演示了一个程序控制的单个SMC源，其中在单个SMC生成过程中使用辅助激光器适时地平衡了腔内热效应。采用微梳功率作为判别微梳状态的标准，并采用向前和向后的热调谐技术来确定单个SMC。此外，基于闭环控制系统，SMC源的重复频率稳定性提高了20倍以上，并且只需更改操作温度即可连续调整泵浦频率。连续200代试验并保持10小时以上，证明了SMC来源的可靠性。我们认为，建议的SMC来源将在未来基于SMC的应用程序开发中产生重大的有希望的影响。