en اپتیک کوانتمی، مخابرات کوانتمی و کامپیوترهای اپتیکی Quantum Optics, Quantum Communications, Quantom Computing پژوهشي Research ABSTRACT&mdash;<span style="font-size:11pt"><span new="" roman="" style="font-family:" times=""><span style="font-weight:bold"><span style="color:#000000"><span style="font-style:normal"><span style="white-space:normal"><span style="text-decoration:none">One of the nonlinear optical phenomena which arise out of a &chi;⁽³⁾&nbsp;nonlinearity, is the intensity dependence of the refractive index. In this paper, we describe this phenomenon based on the nonlinear coherent states approach. We show that the deformed two-dimensional oscillator algebra can be used to describe this nonlinear optical system. Then, we construct the nonlinear coherent states for this nonlinear optical system and study their quantum statistical properties. Finally, we find that by changing nonlinearity of the media, it is possible to control the nonclassical properties of the system.</span></span></span></span></span></span></span> Deformed oscillator algebra, Nonlinear coherent state, Nonlinear optical system. 27 36 http://ijop.ir/browse.php?a_code=A-10-893-1&slc_lang=en&sid=1 Mojgan Momeni-Demneh mojganmomeni@outlook.com 10031947532846004439 10031947532846004439 No Department of Physics, University of Isfahan, Isfahan, Iran Ali Mahdifar a.mahdifar@sci.ui.ac.ir 10031947532846004440 10031947532846004440 Yes Department of Physics, University of Isfahan, Isfahan, Iran & Quantum Optics Group, Department of Physics, University of Isfahan, Isfahan, Iran Rasoul Roknizadeh rokni@sci.ui.ac.ir 10031947532846004441 10031947532846004441 No Department of Physics, University of Isfahan, Isfahan, Iran