This document proposes a system using three nano ring resonators to slow down light for use in read only memory. A bright soliton pulse generated in the nano ring resonators due to their Kerr nonlinear behavior can be trapped, stopping the light coherently within the waveguides. The optical gain stored in the nano ring device provides memory that is available for read only memory applications. A memory time of 95fs was achieved using this system of nano ring resonators to store light for read only memory.

1. Stop Light Generation using Nano Ring Resonators for ROM
A. Zeinalinezhad1
, S. E. Pourmand2
, I. S. Amiri3
, A. Afroozeh4*
1
Chemistry Department, Anar Branch, Islamic Azad University, Anar, Iran
2
Physics Department, Estahban Branch, Islamic Azad University, Estahban, Iran
3
Institute of Advanced Photonics Science, Nanotechnology Research Alliance UniversitiTeknologi
Malaysia (UTM), 81300 Johor Bahru, Malaysia
4
Physics Department, Fasa University, Fasa, Iran
*
Email: afroozeh155@yahoo.com
Abstract. In this study, we proposed a new system of an opticalsystem that can be used to slow
down light. The system consist three nano ring resonators (NRRs) that can be switching a single
system, to solved the problem of bandwidth delay limit with small group velocities. The large
bandwidth is generated by a bright soliton pulse in nano ring resonators with Kerr type nonlinear
behaviour. In this system bright soliton pulse can be trapped,that is, stopped coherently within
the waveguide. The time independentoptical gain is stored within the nano ring device, which is
available forread only memory (ROM) use. The memory time of 95fs is achieved.
Keywords: Read only memory, Ring resonators, Soliton.
Introduction
Stop Light is an important operator that can be involved in many areas of research in
science and technology, which can use in many applications [1-3]. One of the interesting
applications is that the optical memory for quantum computer, high speed computer. The key to
ultimate control of light and has profound implication for optical communications is slow down
the propagation speed of light, and to coherently stop and store optical pulses [4-6]. Recently, the
use of a nano ring resonator to form a fast light generation by bright soliton has been achived
by Yupapin et al. [7]. They have shown that the large bandwidth can be compressed coherently
with a small group velocity. In practice, there are such devices have been fabricated and used [8-
10] in various applications. In this article, we show that the large band-width of light pulse is
generated and compressed within the non-linear micro and nanoring system [11-14]. The
selected (tuned) pulse is coherently stopped and stored within the nanoring device [15-19]. In