Nonlinear Optical Pulses in Media with Asymmetric Gain

A generic novel model governing optical pulse propagation in a nonlinear dispersive amplifying medium with asymmetric (linear spectral slope) gain is introduced. We examine the properties of asymmetric optical pulses formed in such gain-skewed media, both theoretically and numerically. We derive a dissipative optical modification of the classical shallow water equations that highlights an analogy between this phenomenon and hydrodynamic wave breaking. These findings provide insight into the nature of asymmetric optical pulses capable of accumulating large nonlinear phase without wave breaking, a crucial aspect in the design of nonlinear fiber amplifiers.

Automated summary

This study introduces a generic novel model for the propagation of optical pulses in a nonlinear dispersive amplifying medium with asymmetric gain. The properties of asymmetric optical pulses formed in such gain-skewed media are examined theoretically and numerically. A dissipative optical modification of the classical shallow water equations is derived, highlighting the analogy between this phenomenon and hydrodynamic wave breaking. These findings provide insight into the nature of asymmetric optical pulses capable of accumulating large nonlinear phase without wave breaking, which is crucial for the design of nonlinear fiber amplifiers.