论文标题
Crystalline微孔子中Kerr Soliton Microcombs的多功能调整
Versatile tuning of Kerr soliton microcombs in crystalline microresonators
论文作者
论文摘要
从高质量的小型微孔子（也称为Microcombs）发出的基于微孔子的光学频率梳子已向光学频率梳理技术的领域开放了新的视野，包括频率计量学，精度传感和光学通信。为了扩展微型群岛在此类应用中的能力，大型可靠的可调性至关重要。在这里，我们显示了具有泵开稳定的热控制晶体微孔子中Kerr Soliton Microcomb的广泛调整。组成频率梳的基本元素，即中心频率，重复频率和载波偏移频率，分别通过高达-48.8 GHz，-5.85 MHz和-386 MHz进行频谱调整，在Ultrahigh -Q Crystalline Magnemium少量氟化氟化物中利用热效应。我们进一步证明，通过使用纤维到谐振器偶联效率的定量分析，温度变化仅28 K，导致热膨胀产生的圆锥梳子功率增强了3.4倍。
Microresonator-based optical frequency combs emitted from high-quality-factor microresonators, also known as microcombs, have opened up new horizons to areas of optical frequency comb technology including frequency metrology, precision sensing, and optical communication. To extend the capability of microcombs for such applications, large and reliable tunability is of critical importance. Here, we show broad spectral tuning of Kerr soliton microcombs in a thermally controlled crystalline microresonator with pump-detuning stabilization. The fundamental elements composing frequency combs, namely the center frequency, repetition frequency, and carrier-envelope offset frequency, are spectrally tuned by up to -48.8 GHz, -5.85 MHz, and -386 MHz, respectively, leveraging thermal effects in ultrahigh-Q crystalline magnesium fluoride resonators. We further demonstrate a 3.4-fold enhancement of soliton comb power resulting from thermal expansion with a temperature change of only 28 K by employing quantitative analyses of the fiber-to-resonator coupling efficiency.
