Dispersion-managed solitons in optical amplifier transmission systems with zero average dispersion

Area of Science:

• Nonlinear optics
• Optical fiber communications
• Soliton physics

Background:

• Soliton propagation is typically studied in systems with anomalous dispersion.
• Recent discoveries show solitons can propagate in zero or normal average dispersion regimes.
• Understanding these phenomena is crucial for advanced optical communication systems.

Purpose of the Study:

• To provide a qualitative physical explanation for soliton propagation in zero net dispersion systems.
• To describe a practical system enabling such soliton propagation.
• To analyze key soliton properties, including power, energy, and width, as functions of dispersion management.

Main Methods:

• Theoretical examination of soliton propagation dynamics.
• Analysis of a cascaded dispersion-managed optical amplifier system.
• Investigation of chirp-free points and their relation to soliton parameters.

Main Results:

• A physical explanation is presented for finite energy soliton propagation in zero/normal average dispersion.
• The dependence of soliton power on pulse width at chirp-free points is detailed.
• Soliton average energy and width are characterized as functions of the dispersion-allocation parameter.

Conclusions:

• Finite energy solitons can stably propagate in dispersion-managed systems with zero net dispersion.
• The dispersion-allocation parameter critically influences soliton properties.
• This research offers insights into designing advanced optical fiber systems for soliton-based information transmission.