Minimizing bending losses in two-dimensional discrete soliton networks

Area of Science:

• Nonlinear optics
• Waveguide optics
• Soliton dynamics

Background:

• Discrete solitons are localized waves in periodic structures.
• Waveguide arrays support the propagation of discrete solitons.
• Sharp bends in these arrays can cause significant reflection losses.

Purpose of the Study:

• To investigate methods for reducing reflection losses of discrete solitons at sharp bends.
• To explore the role of corner site engineering in mitigating these losses.

Main Methods:

• Analytical modeling of soliton propagation and reflection.
• Numerical simulations of discrete soliton dynamics in engineered waveguide bends.

Main Results:

• Reflection losses at sharp bends can be almost eliminated through specific corner site designs.
• The engineered corner site effectively guides the soliton, preventing back-scattering.

Conclusions:

• Corner site engineering is a viable strategy to minimize soliton reflection losses in waveguide networks.
• This approach enhances the efficiency of signal transmission in discrete optical systems.