Kuyken B, Ji H, Clemmen S, Selvaraja S K, Hu H, Pu M, Galili M, Jeppesen P, Morthier G, Massar S, Oxenløwe L K, Roelkens G, Baets R
Photonics Research Group, Department of Information Technology, Ghent University – imec, Ghent, Belgium.
Opt Express. 2011 Dec 12;19(26):B146-53. doi: 10.1364/OE.19.00B146.
We propose hydrogenated amorphous silicon nanowires as a platform for nonlinear optics in the telecommunication wavelength range. Extraction of the nonlinear parameter of these photonic nanowires reveals a figure of merit larger than 2. It is observed that the nonlinear optical properties of these waveguides degrade with time, but that this degradation can be reversed by annealing the samples. A four wave mixing conversion efficiency of + 12 dB is demonstrated in a 320 Gbit/s serial optical waveform data sampling experiment in a 4 mm long photonic nanowire.
我们提出氢化非晶硅纳米线作为电信波长范围内非线性光学的一个平台。对这些光子纳米线的非线性参数进行提取后发现其品质因数大于2。据观察，这些波导的非线性光学特性会随时间退化，但通过对样品进行退火处理，这种退化可以逆转。在一根4毫米长的光子纳米线中进行的320 Gbit/s串行光学波形数据采样实验中，展示了12 dB的四波混频转换效率。
