Eckhaus instability induced by nonuniformities in a laser - art. no. 061801

Authors
Plumecoq, J Szwaj, C Derozier, D Lefranc, M Bielawski, S
Citation
J. Plumecoq et al., Eckhaus instability induced by nonuniformities in a laser - art. no. 061801, PHYS REV A, 6406(6), 2001, pp. 1801
Citations number
18
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW A
ISSN journal
10502947 → ACNP
Volume
6406
Issue
6
Year of publication
2001
Database
ISI
SICI code
1050-2947(200112)6406:6<1801:EIIBNI>2.0.ZU;2-D
Abstract
We show that the Eckhaus instability induced by spatial nonuniformities, ob served in hydrodynamics, can also destabilize optical systems. On the examp le of a one-dimensional parametric system (a modulated multimode laser), we show numerically that the nonuniformities select a wave number outside the Eckhaus-stable band, leading to periodic or irregular phase slips. The ins tability is confirmed experimentally by using a modulated fiber laser.