ttp://iaeme.com/Home/journal/IJARET 462 editor@iaeme.com h International Journal Advanced Research Engineering a Technology (IJARET) of in nd Volume 10, Issue 6, November-December 2019, pp.462-474, Article ID: IJARET_10_06_051 Available online ttp://iaeme.com/Home/issue/IJARET?Volume=10&Issue=6 at h ISSN Print: 0976-6480 and ISSN Online: 0976-6499 DOI: 10.34218/IJARET.10.6.2019.051 © IAEME Publication Indexed Scopus ANALYTICAL ANALYSIS OF INTENSITY DEPENDENT HIGHER ORDER DISPERSION PROPERTIES OF LONG PERIOD GRATING Ghisiya Chouhan Department of Physics, Dr. A. P. J. Abdul Kalam University, Indore, Madhya Pradesh, India Ritesh Yadav Department of Physics, Dr. A. P. J. Abdul Kalam University, Indore, Madhya Pradesh, India Santosh Pawar* Department of Electronics & Communication, School of Engineering, Dr. A. P. J. Abdul Kalam University, Indore, Madhya Pradesh, India Abinash Kumar Department of Electronics & Communication, School of Engineering, Dr. A. P. J. Abdul Kalam University, Indore, Madhya Pradesh, India *Corresponding Author ABSTRACT Present study deals with analytical analysis of intensity dependent delay and higher order dispersion properties of long period fiber grating. A nonlinear coupled mode equation of grating has been utilized and solved in a very simple manner to obtain the mathematical expression of intensity dependent delay, group velocity, first, second and third higher order dispersion properties of long period grating under nonlinear Kerr regime. The results show that the intensity of the incident beam modifies the spectral properties of long period grating. It is found that overall dispersion of the grating shifts to another wavelength when intensity of the beam produce the Kerr effect inside the grating. Reported results of nonlinear grating in the paper can be useful for designing of dispersion compensator devices to compensate the broadening of the optical pulses in long haul optical communication link. Key words: Delay, Dispersion, Long period Grating, Coupled Mode Equation and Dispersion Compensator.