Impact of XPM on the performance of microwave photonic switching with NOLM

Abstract

The impact of XPM on the microwave photonic switching with NOLM is analyzed by the split-step Fourier method (SSFM) that can solve the coupled nonlinear Schrödinger equation (CNLSE). The simulation results show that XPM induces the distortion of waveforms and the leak of side lobes. And the larger the modulation bandwidth is, the larger the leak of side lobes is. Furthermore, the power transmission function of NOLM T_m is distorted because of the XPM-induced nonreciprocity: T_m decreases when the splitting ratio of the coupler f∈(0,0.5) and increases when f∈(0.5,1).

References

[1] AlwynJ. S.. IEEE Transactions on Microwave theory and Techniques, 2002, 50: 877

[2] NelsonB. P., BlowK. J., ConstantineP. D., DoranN. J., LucekJ. K., MarshallI. W., SmithK.. Electronics Letters, 1991, 27: 704

[3] YuanM., ZhangM., SunX.. Acta Photonica Sinica, 2006, 35: 838

[4] ChenJ., KimH., ChungY. C.. IEEE Photonics Technology Letters, 2001, 13: 663

[5] ChiangT. K., KagiN., MarhicM. E., KazovskyL. G.. Journal of Lightwave Technology, 1996, 14: 249

[6] AgrawalG. P.. Nonlinear fiber optics, 1995, 2nd EditionNew York, Academic, 122

[7] AgrawalG. P.. Nonlinear fiber optics, 1995, 2nd EditionNew York, Academic, 247