论文标题
在NIR和MIR的两色Kerr Soliton生成的部分蚀刻GAP-OI微孔子的设计
Design of Partially Etched GaP-OI Microresonators for Two-Color Kerr Soliton Generation at NIR and MIR
论文作者
论文摘要
我们在600 nm x 2990 nm波导中提出和理论上研究了一个分散工程的GAP-OI微孔子，该分散性GAP-OI微孔子带有250 nm x 410 nm的部分间隙。该差距使宽3.25μm宽的异常分散光谱跨度涵盖了近红外和中红外光谱。这种异常的分散体由两种机制表现出来，是在1550 nm左右的基本TE模式的杂交以及分别在3100 nm波长附近的高级TE模式的几何分散体。在这些频谱窗口处，可以用101 GHz和97 GHz牙齿间距来数值生成两个Kerr Soliton梳子。所提出的结构显示了由于部分蚀刻的间隙而展示了设计灵活性，并为新兴的GAP-OI平台中的潜在相干多色频率梳子产生铺平了道路。
We present and theoretically investigate a dispersion engineered GaP-OI microresonator containing a partially-etched gap of 250 nm x 410 nm in a 600 nm x 2990 nm waveguide. This gap enables a 3.25 μm wide anomalous dispersion spectral span covering both the near-infrared and the mid-infrared spectra. This anomalous dispersion is manifested by two mechanisms, being the hybridization of the fundamental TE modes around 1550 nm and the geometric dispersion of the higher order TE mode around the 3100 nm wavelengths, respectively. Two Kerr soliton combs can be numerically generated with 101 GHz and 97 GHz teeth spacings at these spectral windows. The proposed structure demonstrates the design flexibility thanks to the partially etched gap and paves the way towards potential coherent multicolor frequency comb generation in the emerging GaP-OI platform.
