通过宽带线性啁啾周期极化铌酸锂波导中的级联和频 - 差频实现160Gb/s全光相位透明波长转换
160-Gb/s all-optical phase-transparent wavelength conversion through cascaded SFG-DFG in a broadband linear-chirped PPLN waveguide.
作者信息
Lu Guo-Wei, Shinada Satoshi, Furukawa Hideaki, Wada Naoya, Miyazaki Tetsuya, Ito Hiromasa
机构信息
National Institute of Information and Communications Technology, 4-1-1, Nukui-Kitamachi, Koganei, Tokyo 184-8795, Japan.
出版信息
Opt Express. 2010 Mar 15;18(6):6064-70. doi: 10.1364/OE.18.006064.
We experimentally demonstrated ultra-fast phase-transparent wavelength conversion using cascaded sum- and difference-frequency generation (cSFG-DFG) in linear-chirped periodically poled lithium niobate (PPLN). Error-free wavelength conversion of a 160-Gb/s return-to-zero differential phase-shift keying (RZ-DPSK) signal was successfully achieved. Thanks to the enhanced conversion bandwidth in the PPLN with linear-chirped periods, no optical equalizer was required to compensate the spectrum distortion after conversion, unlike a previous demonstration of 160-Gb/s RZ on-off keying (OOK) using fixed-period PPLN.
我们通过线性啁啾周期极化铌酸锂（PPLN）中的级联和频与差频产生（cSFG-DFG）实验演示了超快速相位透明波长转换。成功实现了160 Gb/s归零差分相移键控（RZ-DPSK）信号的无差错波长转换。由于具有线性啁啾周期的PPLN中转换带宽的增强，与之前使用固定周期PPLN演示160 Gb/s RZ开关键控（OOK）不同，转换后无需光学均衡器来补偿频谱失真。
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