6533b851fe1ef96bd12a8f3d

RESEARCH PRODUCT

Coexistence of single-mode and multi-longitudinal mode emission in the ring laser model

Eugenio RoldánRamon VilasecaJ. L. FontFranco Prati

subject

BistabilityFOS: Physical sciencesPhysics::OpticsRing laserInstabilityOptical bistabilityLongitudinal modesymbols.namesakeINSTABILITIESOpticsElectrical and Electronic EngineeringPhysical and Theoretical ChemistryHopf bifurcationPhysicsbusiness.industrySingle-mode optical fiberNonlinear Sciences - Chaotic DynamicsAtomic and Molecular Physics and OpticsPULSESElectronic Optical and Magnetic MaterialsPitchfork bifurcationsymbolsTURBULENCEChaotic Dynamics (nlin.CD)businessOptics (physics.optics)Physics - Optics

description

A homogeneously broadened unidirectonal ring laser can emit in several longitudinal modes for large enough pump and cavity length because of Rabi splitting induced gain. This is the so called Risken-Nummedal-Graham-Haken (RNGH) instability. We investigate numerically the properties of the multi-mode solution. We show that this solution can coexist with the single-mode one, and its stability domain can extend to pump values smaller than the critical pump of the RNGH instability. Morevoer, we show that the multi-mode solution for large pump values is affected by two different instabilities: a pitchfork bifurcation, which preserves phase-locking, and a Hopf bifurcation, which destroys it.

yearjournalcountryeditionlanguage
2005-11-03
10.1016/j.optcom.2005.12.027http://arxiv.org/abs/physics/0511025