We demonstrate high efficiency wavelength conversion via four wave mixing in amorphous silicon carbide ring resonators with a loaded quality factor of 70 000. Owing to the high quality factor and high nonlinearity of amorphous silicon carbide, −21 dB conversion efficiency is achieved with 15 mW pump power. Moreover, the thermo-optic coefficient (TOC) of amorphous silicon carbide is measured to be 1.4 × 10⁻⁴/°C at telecommunication wavelengths. Taking advantage of the high TOC, we demonstrate optical bistability in the silicon carbide ring resonator. This work presents amorphous silicon carbide as a promising platform for applications in optical signal processing.

中文翻译：

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非晶碳化硅环形谐振器中的高效四波混频和光学双稳态

我们演示了在负载质量因数为70000的非晶碳化硅环形谐振器中通过四波混频实现的高效波长转换。由于非晶碳化硅的高品质因数和高非线性，使用15 mW的泵实现了−21 dB的转换效率功率。此外，在电信波长下，非晶碳化硅的热光系数（TOC）经测量为1.4×10 ^-4 /℃。利用高TOC，我们证明了碳化硅环形谐振器的光学双稳性。这项工作提出了非晶碳化硅作为光信号处理应用的有前途的平台。