Jenkins R B, Dennis M L, Kaechele W I, Carruthers T F, Duling Iii I N
Opt Lett. 2000 May 1;25(9):604-6. doi: 10.1364/ol.25.000604.
In an experimental demonstration of four-channel, wavelength-division-multiplexed repeaterless transmission over 235 km, adiabatic soliton propagation allows for precise spectral characterization of cross-phase modulation effects during initial soliton collisions. Theoretical predictions of the spectral shifts that occur are verified for ultrashort solitons. The relationship between the frequency shift and the initial pulse separation is confirmed by measurement of the bit-error ratio as the pulse spacing is varied at the fiber input. Adiabatic expansion of narrow solitons may help to alleviate the channel restrictions that are required for prevention of soliton collisions at the fiber input.
在一个关于235公里无中继四通道波分复用传输的实验演示中，绝热孤子传播能够精确表征初始孤子碰撞期间的交叉相位调制效应的光谱特性。对于超短孤子，发生的光谱频移的理论预测得到了验证。当在光纤输入端改变脉冲间距时，通过测量误码率证实了频移与初始脉冲间隔之间的关系。窄孤子的绝热扩展可能有助于缓解在光纤输入端防止孤子碰撞所需的信道限制。
