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Stable few-cycle out-of-phase solitons in a rectangular multi-core fiber.

A A Balakin, S A Skobelev, A G Litvak

|December 1, 2023

Summary

This summary is machine-generated.

Stable, few-cycle duration wave field distributions were discovered in weakly coupled core fibers. Analytical and numerical methods confirm their stability, with shorter pulses transforming into this solution.

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Area of Science:

Nonlinear optics
Wave propagation in structured media

Background:

Optical fibers with engineered structures support unique light propagation phenomena.
Soliton-like wave packets are crucial for information transmission and fundamental studies.

Purpose of the Study:

To investigate the existence and stability of novel out-of-phase soliton-like wave field distributions.
To explore the dynamics of short optical pulses in specifically designed fiber lattices.

Main Methods:

Analytical investigation of wave propagation equations.
Numerical simulations of pulse dynamics in multi-core fibers.
Stability analysis of the identified soliton solutions.

Main Results:

Stable out-of-phase soliton-like distributions with few-cycle durations were identified.
The stability of these distributions was analytically and numerically confirmed for durations exceeding a critical value.
Shorter optical pulses were observed to evolve into the stable solution through the radiation of dispersive waves.

Conclusions:

Weakly coupled multi-core fibers can support stable, short-duration soliton-like wave packets.
The identified solutions represent a new class of stable optical solitons.
These findings have implications for pulse shaping and stable light propagation in engineered optical systems.