Cross-phase modulation instability in single-mode optical fibers with exponential saturable nonlinearity

Xianqiong Zhong; Anping Xiang

doi:10.1117/12.885975

31 December 2010 Cross-phase modulation instability in single-mode optical fibers with exponential saturable nonlinearity

Xianqiong Zhong, Anping Xiang

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Proceedings Volume 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation; 75443U (2010) https://doi.org/10.1117/12.885975
Event: Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 2010, Hangzhou, China

Abstract

In this paper, based on the extended coupled nonlinear Schrödinger equations including exponential saturable nonlinearity (ESN) in optical fibers, the linearized coupled nonlinear Schrödinger equations are derived. Subsequently, the corresponding condition and gain spectra of cross-phase modulation induced modulation instability (MI) are deduced and calculated. And the variations of the critical perturbation frequency and the peak gain with the input powers are calculated and compared with the case of conventional saturable nonlinearity (CSN) in both the normal and anomalous dispersion regions. The results show that, the critical perturbation frequency and the peak gain increase with the input power, reach a maximum value, and then decrease. Moreover, in comparison, when the other parameters are the same, the varying rates will be faster than those of CSN. These features lead to a unique value of peak gain and critical frequency for two different input powers. This work may be beneficial to further study of new types of bistable or multistable optical solitons.

Citation Download Citation

Xianqiong Zhong and Anping Xiang "Cross-phase modulation instability in single-mode optical fibers with exponential saturable nonlinearity", Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 75443U (31 December 2010); https://doi.org/10.1117/12.885975

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KEYWORDS

Picosecond phenomena

Modulation

Nonlinear optics

Optical fibers

Dispersion

Optical solitons

Single mode fibers

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