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Fourth-order dispersion mediated modulation instability in dispersion oscillating fibers
Maxime Droques1, Alexandre Kudlinski, Geraud Bouwmans
1Laboratoire PhLAM (UMR CNRS 8523), IRCICA (USR CNRS 3380), Université Lille 1, 59655 Villeneuve d’Ascq, France.
Optics Letters
|August 31, 2013
Summary
Fourth-order dispersion in oscillating fibers creates new instability peaks and sidebands in normal dispersion regimes. These findings, driven by dispersion variation, were experimentally verified.
Area of Science:
- Nonlinear Optics
- Fiber Optics
Background:
- Modulation instability is a key phenomenon in nonlinear fiber optics.
- Uniform fibers exhibit instability sidebands in the normal dispersion regime due to higher-order dispersion.
- Dispersion oscillating fibers offer unique properties for controlling light propagation.
Purpose of the Study:
- To investigate the influence of fourth-order dispersion on modulation instability in dispersion oscillating fibers.
- To identify and characterize novel instability phenomena arising from dispersion variations.
Main Methods:
- Theoretical analysis of modulation instability incorporating fourth-order dispersion.
- Numerical simulations of light propagation in dispersion oscillating fibers.
- Experimental verification of theoretical predictions.
Main Results:
- Fourth-order dispersion induces instability sidebands in the normal dispersion regime, consistent with uniform fibers.
- A new class of large detuned instability peaks is observed and attributed to dispersion variation.
- Experimental results confirm the theoretical predictions regarding instability phenomena.
Conclusions:
- Fourth-order dispersion plays a crucial role in modulation instability within dispersion oscillating fibers.
- Dispersion variation in these fibers leads to unique instability characteristics, including large detuned peaks.
- The study validates theoretical models and experimental observations, advancing the understanding of nonlinear fiber dynamics.
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