Fully-Integrated and Broadband Si-Rich Silicon Nitride Wavelength Converter Based on Bragg Scattering Intermodal Four-Wave Mixing
Fully-Integrated and Broadband Si-Rich Silicon Nitride Wavelength Converter Based on Bragg Scattering Intermodal Four-Wave Mixing
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DOI：
10.1364/prj.506691
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发表时间：
2023-11
影响因子：
7.6
通讯作者：
Valerio Vitali;T. Domínguez Bucio;Hao Liu;J. Luque‐González;F. Jurado-Romero;A. Ortega-Moñux;Glenn M Churchill;J. Gates;J. Hillier;N. Kalfagiannis,;D. Melati;J. Schmid;Ilaria Cristiani;P. Cheben;J. Wangüemert-Pérez;Í. Molina-Fernández;F. Gardes;C. Lacava;Periklis Petropoulos
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文献类型：
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作者：
Valerio Vitali;T. Domínguez Bucio;Hao Liu;J. Luque‐González;F. Jurado-Romero;A. Ortega-Moñux;Glenn M Churchill;J. Gates;J. Hillier;N. Kalfagiannis,;D. Melati;J. Schmid;Ilaria Cristiani;P. Cheben;J. Wangüemert-Pérez;Í. Molina-Fernández;F. Gardes;C. Lacava;Periklis Petropoulos
由于可以控制激发同一波导的不同空间模式的波的传播特性，因此最近全光信号处理应用引起了极大的兴趣。原则上，这允许将信号放置在不同的频谱区域中，并且与模内过程相比，在相当大的带宽上满足相位匹配条件。然而，迄今为止报道的演示显示出有限的带宽，并且缺乏为不同模式的宽带操作而设计的片上组件。我们在这里展示了一种基于布拉格散射模间四波混频的富硅氮化硅波长转换器，它集成了模转换，复用和解复用功能。该系统能够实现泵浦波和位于不同电信频带（相隔60 nm）中的信号之间的波长转换，其中3dB带宽超过70 nm，据我们所知，这代表了在基于多模FWM的系统中曾经实现的最宽带宽
) processes have recently attracted significant interest for all-optical signal processing applications thanks to the possibility to control the propagation properties of waves exciting distinct spatial modes of the same waveguide. This allows, in principle, to place signals in different spectral regions and satisfy the phase matching condition over considerably larger bandwidths compared to intramodal processes. However, the demonstrations reported so far have shown a limited bandwidth and suffered from the lack of on-chip components designed for broadband manipulation of different modes. We demonstrate here a silicon-rich silicon nitride wavelength converter based on Bragg scattering intermodal FWM, which integrates mode conversion, multiplexing and de-multiplexing functionalities on-chip. The system enables wavelength conversion between pump waves and a signal located in different telecommunication bands (separated by 60 nm) with a 3 dB bandwidth exceeding 70 nm, which represents, to our knowledge, the widest bandwidth ever achieved in an intermodal FWM-based system