Table_1_Silicon Photonics Chip for Inter-modal Four Wave Mixing on a Broad Wavelength Range.DOCX

We design, fabricate and test an integrated silicon photonics chip for inter-modal four wave mixing, whose phase-matching relays on the modal dispersions of different waveguide modes. This phase-matching technique allows for tunable and broadband wavelength conversion and generation. We demonstrate that idler and signal photons can be generated with 800 nm spectral distance in between. We measure several inter-modal combinations, with up to the third order mode involvement. We demonstrate a maximum conversion efficiency of –12.4 dB from 1,468.5 to 1,641.1 nm with a bandwidth of 11 nm. We also prove the high and broadband tunability of the generated signal by scanning the pump wavelength when the signal wavelength is fixed. All these features make the inter-modal four wave mixing a viable solution for all optical processing in the near as well as in the mid infrared and for quantum applications.

本研究设计、制备并测试了一款面向模间四波混频（inter-modal four wave mixing）的集成硅光子芯片，其相位匹配机制依托于不同波导模式的模式色散。该相位匹配技术可实现可调谐宽带波长转换与波长产生。实验证实可产生光谱间距为800 nm的闲频光子与信号光子。我们测试了多种模间组合，其中最高涉及三阶波导模式。实验测得最大转换效率为-12.4 dB，对应波长从1468.5 nm转换至1641.1 nm，转换带宽达11 nm。通过固定信号波长并扫描泵浦波长，我们验证了所产生信号的宽带高可调谐特性。上述特性使模间四波混频成为近红外乃至中红外全光处理以及量子应用的可行技术方案。