论文标题
磷化物腔中的非线性光学元件：同时进行第二和第三次谐波生成
Nonlinear optics in gallium phosphide cavities: simultaneous second and third harmonic generation
论文作者
论文摘要
我们证明了来自磷化胆碱（GAP）微波的电信波长泵的第二和第三次谐波信号同时生成。利用第二和第三个谐波输出的功率缩放以及非线性腔模式耦合因子的计算，我们研究了直接和级联总和频率产生过程对第三个谐波信号的贡献。我们发现，尽管在第三个谐波波长处磷化磷脂中材料的吸收相对较高，但这两个过程都可能很重要，相对幅度紧密依赖于腔模式的第二个谐波波长之间的失沟。
We demonstrate the simultaneous generation of second and third harmonic signals from a telecom wavelength pump in a gallium phosphide (GaP) microdisk. Using analysis of the power scaling of both the second and third harmonic outputs and calculations of nonlinear cavity mode coupling factors, we study contributions to the third harmonic signal from direct and cascaded sum frequency generation processes. We find that despite the relatively high material absorption in gallium phosphide at the third harmonic wavelength, both of these processes can be significant, with relative magnitudes that depend closely on the detuning between the second harmonic wavelength of the cavity modes.
