Nonlinear optical pulses in media with asymmetric gain

Autor:	Turitsyn, Sergei K., Bednyakova, Anastasia E., Podivilov, Evgeniy V.
Rok vydání:	2023
Předmět:	Physics - Optics Nonlinear Sciences - Pattern Formation and Solitons
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.131.153802
Popis:	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. We observe the development of spectral optical shock waves, and discuss the conditions and origins of this spectral wave-breaking in media with asymmetric gain. 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. Comment: 11 pages, 10 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2306.13444 Zobrazit plný text záznamu View this record from Arxiv