Spoof four-wave mixing for all-optical wavelength conversion.
Spoof four-wave mixing for all-optical wavelength conversion.
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DOI：
10.1364/oe.20.024030
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发表时间：
2012-10
期刊：
影响因子：
3.8
通讯作者：
Y. Gong;Jungang Huang;Kang Li;N. Copner;J. J. Martínez-J.;Leiran Wang;Tao Duan;Wenfu Zhang;W. Loh
中科院分区：
文献类型：
--
作者：
Y. Gong;Jungang Huang;Kang Li;N. Copner;J. J. Martínez-J.;Leiran Wang;Tao Duan;Wenfu Zhang;W. Loh
本文首次提出了一种不需要相位匹配而支持调制格式无关的全光波长转换方案。新方案被命名为“欺骗”四波混频（SFWM），并且与众所周知的FWM理论（其中诱导的动态折射率光栅调制光子以在新频率下产生波）相比，SFWM的不同之处在于动态折射率光栅在非线性布拉格光栅（BG）中产生以在反射光谱中的原始BG带隙的任一侧激发额外的反射峰。这一根本区别使得SFWM避免了传统四波混频需要严格相位匹配的固有缺点，使得AOWC具有调制格式透明性和超宽的转换范围，在下一代全光网络中具有巨大的应用潜力。
We present for the first time an all-optical wavelength conversion (AOWC) scheme supporting modulation format independency without requiring phase matching. The new scheme is named "spoof" four wave mixing (SFWM) and in contrast to the well-known FWM theory, where the induced dynamic refractive index grating modulates photons to create a wave at a new frequency, the SFWM is different in that the dynamic refractive index grating is generated in a nonlinear Bragg Grating (BG) to excite additional reflective peaks at either side of the original BG bandgap in reflection spectrum. This fundamental difference enable the SFWM to avoid the intrinsic shortcoming of stringent phase matching required in the conventional FWM, and allows AOWC with modulation format transparency and ultrabroad conversion range, which may have great potential applications for next generation of all-optical networks.