Engineered octave frequency comb in integrated chalcogenide dual-ring microresonators
Engineered octave frequency comb in integrated chalcogenide dual-ring microresonators
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DOI：
10.3389/fphot.2023.1066993
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发表时间：
2022-10
期刊：
影响因子：
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通讯作者：
Zifu Wang;Liyang Luo;Di Xia;Siqi Lu;Guosheng Lin;Shecheng Gao;Zhaohui Li;Bin Zhang
中科院分区：
文献类型：
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作者：
Zifu Wang;Liyang Luo;Di Xia;Siqi Lu;Guosheng Lin;Shecheng Gao;Zhaohui Li;Bin Zhang
跨越八度的Kerr梳子桥接近红外区（NIR）和中红外区（MIR）的光谱窗口，有望在许多应用中得到应用，包括高容量相干光通信和气体分子吸收足迹。在这里，我们提出了一种新的同心双环微谐振器（DRMs），用于先进的色散工程，以定制梳状光谱轮廓。该色散不仅可以通过共振管的横截面，还可以通过同心双环微谐振器之间的间隙进行灵活的设计，这为几何控制孤子克尔梳的光谱轮廓提供了新的途径。实现了一个具有多色散波的跨八度克尔孤子微梳，覆盖范围从电信波段（1224 nm）到中红外波段（2913 nm），带宽为- 40 dB，为1265 nm。我们的研究结果有望充分理解drm混合模式下的非线性动力学，这有助于控制宽带梳状结构的形成。
Octave-spanning Kerr combs bridging the spectral windows of the near-infrared region (NIR) and the mid-infrared (MIR) region are expected in a number of applications, including high-capacity coherent optical communications, and gas molecular absorption footprints. Here, we propose novel concentric dual-ring microresonators (DRMs) for advanced dispersion engineering to tailor the comb spectral profile. The dispersion can be flexibly engineered not only by the cross-section of the DRMs, but also by the gap between concentric dual-ring microresonators, which provides a new path to geometrically control the spectral profile of the soliton Kerr combs. An octave-spanning Kerr soliton microcomb with multi-dispersive waves has been achieved numerically covering from the telecommunication band (1224 nm) to the mid-infrared band region (2913 nm) with a −40 dB bandwidth of 1265 nm. Our results are promising to fully understand the nonlinear dynamics in hybrid modes in DRMs, which helps control broadband comb formation.