Year: 2012
Type: article
Abstract: Using the method of four-wave probing of the waist of the laser beam focused into the bulk of a short active medium (L ≪ τc, where L is the length of the active medium, τ is the pulse duration, and c is the speed of light), we have studied the dynamics of the behaviour of a dark soliton, appearing upon a jump of the input Stokes signal phase by about π under SBS. The computer simulation has shown that when spontaneous noises with the gain increment Γ, exceeding the self-reflection threshold by 2 – 3 times, are generated, the dark soliton propagates along the interaction region for the time t ≈ T 2 Γ th /2, where T 2 is the the lifetime of acoustic phonons, and Γ th = 25 – 30 is the stationary threshold gain increment.
Source: Quantum Electronics
Language: English
Topic: Nonlinear Photonic Systems
Subfield: Statistical and Nonlinear Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2065830320