Pelusi M D, Luan F, Choi D-Y, Madden S J, Bulla D A P, Luther-Davies B, Eggleton B J
ARC Centre for Ultrahigh bandwidth Devices for Optical Systems, IPOS, School of Physics, University of Sydney, New South Wales 2006, Australia.
Opt Express. 2010 Dec 6;18(25):26686-94. doi: 10.1364/OE.18.026686.
We report the first demonstration of optical phase conjugation (OPC) transmission of phase encoded and wavelength-division multiplexed (WDM) signals by the Kerr effect in a planar structured waveguide. The phase conjugated electric field of the signal is produced by four wave mixing pumped by a CW laser during co-propagating with the signal in a highly nonlinear waveguide fabricated in As(2)S(3) glass. Experiments demonstrate the capability of the device to perform dispersion-free transmission through up to 225 km of standard single mode fiber for a 3 × 40 Gb/s WDM signal, with its channels encoded as return-to-zero differential phase shift keying and spaced either 100 or 200 GHz apart. This work represents an important milestone towards demonstrating advanced signal processing of high-speed and broadband optical signals in compact planar waveguides, with the potential for monolithic optical integration.
我们报道了在平面结构波导中通过克尔效应首次实现对相位编码和波分复用（WDM）信号的光学相位共轭（OPC）传输。信号的相位共轭电场是由连续波激光器泵浦产生的四波混频在与信号共传播时，于砷化二硫（As₂S₃）玻璃制成的高度非线性波导中产生的。实验证明，对于一个3×40 Gb/s的WDM信号，该器件能够在长达225 km的标准单模光纤中进行无色散传输，其通道编码为归零差分相移键控，间隔为100或200 GHz。这项工作代表了在紧凑平面波导中演示高速和宽带光信号的先进信号处理方面的一个重要里程碑，具有单片光学集成的潜力。
