Characterization of a high coherence, Brillouin microcavity laser on silicon
Characterization of a high coherence, Brillouin microcavity laser on silicon
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DOI：
10.1364/oe.20.020170
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发表时间：
2012-08-27
期刊：
影响因子：
3.8
通讯作者：
Vahala, Kerry J.
中科院分区：
文献类型：
--
作者：
Li, Jiang;Lee, Hansuek;Vahala, Kerry J.
最近，一个高效率，窄线宽，基于芯片的受激布里渊激光器（SBL）被证明使用超高Q，硅上硅谐振腔。在这项工作中，这种新的激光器更充分的特点。推导了布里渊激光器工作时的Schawlow Townes线宽公式，并与线宽数据进行了比较，用拟合的结果测量了机械热量子对布里渊激光器线宽的贡献。研究了布里渊光学增益谱对激光模式牵引的影响，并演示了SBL的高阶级联操作。这些器件的微波源和相位相干通信的潜在应用进行了讨论。(C)2012美国光学学会
Recently, a high efficiency, narrow-linewidth, chip-based stimulated Brillouin laser (SBL) was demonstrated using an ultra-high-Q, silica-on-silicon resonator. In this work, this novel laser is more fully characterized. The Schawlow Townes linewidth formula for Brillouin laser operation is derived and compared to linewidth data, and the fitting is used to measure the mechanical thermal quanta contribution to the Brillouin laser linewidth. A study of laser mode pulling by the Brillouin optical gain spectrum is also presented, and high-order, cascaded operation of the SBL is demonstrated. Potential application of these devices to microwave sources and phase-coherent communication is discussed. (C) 2012 Optical Society of America