Eur. Phys. J. Plus (2014) 129: 77
https://doi.org/10.1140/epjp/i2014-14077-3

Regular Article

Concentration of Er³⁺ ion effect on optical bistability and multistability in Er³⁺: YAG crystal

Department of Physics, University of Guilan, Rasht, Iran

^* e-mail: s.hosein.asadpour@gmail.com

Received: 18 February 2014
Accepted: 17 March 2014
Published online: 2 May 2014

Abstract

We investigated optical bistability (OB) and optical multistability (OM) behavior in a 35 nm solid Er³⁺: YAG crystal with a four-level system proposed for an atomic medium inside a unidirectional ring cavity. It is found that the intensity and frequency detuning of the signal and coupling fields as well as Er³⁺ concentration can influence the OB and OM behavior.