Abstract
In the present paper, we take a closer look at the design of long period fiber gratings (LPFG) which present several advantages compared to similar components. In fact, the LPFG has stronger wavelength stability when opposed to temperature variations and a better resistance against mechanical strength. These qualities offer them more importance in the industry. We use an electric arc to change the fiber characteristics and to create a fringe which presents a very thin section of the fiber that has a different refractive index. We use a computer based setup which allow us the control of the arc intensity and the discharge time and the gap between two neighbor fringes for the LPFG varies in the range of 400 to 700 m. A various optical fiber components designs and implementations are possible using electrical arc. In this paper we will expose the use of electrical arc and micro deformations for writing the Long Period Fiber Gratings (LPFG) on a single mode fiber. We take a closer look at the design of this component which present several advantages compared to similar components.