In dense wavelength division multiplexing (DWDM) optical transmission systems, cross-phase modulation (XPM) due to Kerr effect causes phase shift on each channel, which will ultimately be transformed to amplitude noise that leads to power penalties. In this letter, the XPM-induced penalty in multi-channel DWDM systems is investigated theoretically and an applied algorithm that can be practically used in engineering design is proposed.
© 2005 Chinese Optics Letters
Xu Zhu and Qingji Zeng, "Cross-phase modulation-induced penalties in multichannel DWDM optical transport networks," Chin. Opt. Lett. 1, 263-265 (2003)