中文摘要：

数值模拟了IP-over-WDM光网络中基于频移键控／幅移键控（FSK／ASK）正交调制的光标记信号／净荷的传输性能。结果表明，ASK净荷的传输同时受到调制器消光比、接收光功率及光纤色散的影响；FSK光标记信号则主要受到调制器消光比和接收光功率的影响，几乎不受光纤色散因素的影响。

英文摘要：

The performance of optical label transmission system based on FSK/ASK orthogonal modulation in IP-over-WDM optical networks is simulated. The simulations show that the quality of ASK signal carrying the payload is affected simultaneously by the extinction ration of M-Z modulator, optical power in the receiver end and optical dispersion, meanwhile, the quality of FSK signal carrying label is influenced mainly by the extinction ratio and optical power, and almost immune from optical fiber dispersion.