Effects of ion pairs on the dynamics of erbium-doped fiber lasers

Autor:	Pierre-Luc François, Patrice Le Boudec, Guy Stephan, François Sanchez
Rok vydání:	1993
Předmět:	Physics Range (particle radiation) Photon Optical fiber Mathematical model business.industry Physics::Optics Laser Atomic and Molecular Physics and Optics law.invention Ion Optics Laser diode rate equations law Fiber laser Atomic physics business
Zdroj:	Physical Review A. 48:2220-2229
ISSN:	1094-1622 1050-2947
DOI:	10.1103/physreva.48.2220
Popis:	Experiments with erbium-doped fiber lasers demonstrate cw, sinusoidal, and self-pulsing operation. The obtained regimes depend on three control parameters: ion-pair concentration, photon lifetime, and pumping rate. We present a theoretical model which describes the active medium as a mixture of isolated ions and ion pairs. Starting with the adapted laser rate equations we show that the description of the dynamical behavior of this system can be reduced to only four first-order coupled equations. A linear stability analysis demonstrates the existence of self-pulsing for a finite range of pumping rates. At both ends of this range Hopf bifurcations occur: one located near the first laser threshold and the other at a higher pumping ratio, whose position is closely related to the pair concentration
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7806c81f157bc67dd19775d33761b1de https://doi.org/10.1103/physreva.48.2220 Zobrazit plný text záznamu