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 700um. 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.

Wavelength Division Muftzplaing (WDM is a data Pansmitting technology, which allows the sending of a several optical signals from different sources over the same optical jiber. Today, WDM technologies allow maximizing the use of both the existing and the newjiber optic infrastructures. According to the Internotional Telecommunication Union -( I W ] for dhe. WDM standards, optical multiplexers and demuIt@le.wrs must handle closely wavelengths fbr the optical data channels. The use of WDM has reduced the fabrication cost and eased the process of realization. Optical fiber components have very low insertion losses to insert or to extract a specijk optical data ckannelfi-am a WDMnetwork A various optical fiber components designs and implementations are possible. 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 Q closer look at the design of this component which has several advantages compared to similar components. I n fact, the realized LPFG has stronger wavelength stability when opposed io temperature variations aild a better resistance against mechanical strength. These advantages makes the LPFG so important in the indusw,