Uni-directional wavelength conversion in silicon using four-wave mixing driven by cross-polarized pumps
Uni-directional wavelength conversion in silicon using four-wave mixing driven by cross-polarized pumps
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DOI：
10.1364/ol.42.001668
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发表时间：
2017-05-01
期刊：
影响因子：
3.6
通讯作者：
Eggleton, Benjamin J.
中科院分区：
文献类型：
--
作者：
Bell, Bryn A.;Xiong, Chunle;Eggleton, Benjamin J.
我们使用由硅波导正交轴上偏振的两个泵浦脉冲驱动的四波混合布拉格散射来演示电信波长之间的光学频率转换。这允许在单一频率方向上进行转换，同时使用共极化泵浦，信号以类似的效率进行红移或蓝移。我们的方法利用了波导的双折射及其对四波混频过程的相位匹配的影响。可以通过信号的输入偏振来选择蓝色或红色方向，并且在非预期方向上观察到 20 dB 消光比。该技术将允许集成光子器件中指定波长通道之间的高效且受控的转换。 (C) 2017年美国光学学会
We demonstrate optical frequency conversion between tele-com wavelengths using four-wave mixing Bragg scattering powered by two pump pulses polarized on orthogonal axes of a silicon waveguide. This allows conversion in a single frequency direction while, with co-polarized pumps, the signal is redshifted or blueshifted with similar efficiency. Our approach exploits the birefringence of the waveguide and its effect on the phase matching of the four-wave mixing process. The blue or red direction can be selected by the input polarization of the signal, and 20 dB extinction ratios are observed with the unintended direction. This technique will allow efficient and controlled conversion between specified wavelength channels in integrated photonic devices. (C) 2017 Optical Society of America