Dynamics and self-pulsing effects in Tm3+-doped silica fibre lasers

被引：37

作者：

El-Sherif, AF ^{[1
]}

King, TA ^{[1
]}

机构：

[1] Univ Manchester, Dept Phys & Astron, Laser Photon Res Grp, Manchester M13 9PL, Lancs, England

来源：

OPTICS COMMUNICATIONS | 2002年 / 208卷 / 4-6期

关键词：

high power fibre lasers; dynamics; self-pulsing; nonlinear effects;

D O I：

10.1016/S0030-4018(02)01587-0

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Observations are presented on the self-pulsing behaviour of the Tm3+-doped silica fibre laser operating near 2 mum. Various self-pulsing regimes are observed for a range of pumping rates when the fibre is end-pumped with a high power Nd:YAG laser operating at 1.319 mum in a linear bidirectional cavity. A rich variety of nonlinear phenomena, ranging from self-pulsing to self-Q-switching and to a modulated quasi-CW wave. are observed. The phenomenon of pair-induced quenching (PIQ) is considered, compatible with excited-state absorption (ESA). The influence of thulium concentration on ion-pair production is described. The model developed based on the rate equations for a three-level system describes the experimental observations. (C) 2002 Elsevier Science B,V. All rights reserved.

引用

页码：381 / 389

页数：9

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