Weak versus strong harmonic-expansion analyses of self-pulsing lasers: I—the Laser Lorenz model |
| |
Authors: | Samia Ayadi Belkacem Meziane |
| |
Institution: | (1) Institut de Physique, Laboratoire Lasers, USTHB, BP 32, El-Alia Bab-Ezzouar, Algiers, Algeria;(2) Université d’Artois, LPCIA, Rue Jean Souvraz, SP18, 62307 Lens Cedex, France |
| |
Abstract: | We apply a simple harmonic expansion method to the single-mode laser equations to analyze their dynamic properties. First,
we extend the well-known small signal analysis to predict the transient pulsations of the relaxation oscillations. Such transients
are characteristic of the laser signal relaxing towards its long-term solution, at any level of excitation, both beyond and
below the instability threshold. Secondly, we extend the method to a strong harmonic expansion to analyze the properties of
the long-term solutions. These properties are derived for typical examples, extending well beyond the boundary region of the
instability domain, for which the laser field amplitude undergoes regular pulsations around zero-mean values. |
| |
Keywords: | Laser Instabilties Lorenz equations Self-pulsing |
本文献已被 SpringerLink 等数据库收录! |
|