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Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

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Polarization scattering by soliton-soliton collisions.

L F Mollenauer, J P Gordon, F Heismann

|October 29, 2009

Summary

Soliton collisions in wavelength division multiplexing alter polarization states. This polarization scattering, influenced by fiber birefringence, can cause significant timing jitter in optical systems.

Area of Science:

Optics and Photonics
Nonlinear Fiber Optics
Optical Communications

Background:

Wavelength division multiplexing (WDM) systems rely on stable soliton propagation.
Soliton-soliton interactions are critical phenomena in nonlinear fiber optics.
Polarization effects can impact signal integrity in optical fiber transmission.

Purpose of the Study:

To experimentally investigate the impact of soliton-soliton collisions on polarization states in WDM systems.
To analyze the underlying mechanism governing polarization changes during soliton interactions.
To assess the potential of polarization scattering as a source of timing jitter.

Main Methods:

Experimental setup for observing soliton-soliton collisions in a WDM environment.

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Polarization state analysis using Stokes vector measurements.

Theoretical analysis based on the cross product of Stokes vectors.

Main Results:

Soliton-soliton collisions were found to significantly alter the polarization states of the colliding solitons.
The observed polarization change directly correlates with the cross product of the solitons' Stokes vectors.
Fiber birefringence was identified as a key factor exacerbating polarization scattering.

Conclusions:

Soliton-soliton collisions induce polarization scattering, affecting signal quality in WDM systems.
The cross-product relationship provides a quantitative understanding of polarization dynamics.
Polarization scattering due to birefringence represents a critical challenge for timing jitter reduction in optical communications.