en The Study of the Influence of PCFs with Various Configurations on Output Intensity Profiles تخصصی Special پژوهشي Research In this study , effects of variation in photonic crystal fibres׳ (PCFs) configuration on output intensity profiles were investigated for three significant telecomm wavelengths . In order to study the profiles , a Gaussian function was fitted on all obtained profiles with good agreement . The achievements show that while the amounts of air filling fraction and number of air rings were d/Λ= 0.4 and N=4 , respectively , increasing the number of edges in cladding region can not only rise the central intensity but also it can decrease the full width at half maximum (FWHM). In this study , effects of variation in photonic crystal fibres׳ (PCFs) configuration on output intensity profiles were investigated for three significant telecomm wavelengths . In order to study the profiles , a Gaussian function was fitted on all obtained profiles with good agreement . The achievements show that while the amounts of air filling fraction and number of air rings were d/Λ= 0.4 and N=4 , respectively , increasing the number of edges in cladding region can not only rise the central intensity but also it can decrease the full width at half maximum (FWHM). photonic crystal fibre׳s with various configuration, central intensity , full width at half maximum , Gaussian function photonic crystal fibre׳s with various configuration, central intensity , full width at half maximum , Gaussian function 513 516 http://opsi.ir/browse.php?a_code=A-10-1-226&slc_lang=en&sid=1 Akbar Zendehnam Akbar Zendehnam A-ZENDEHNAM@ARAKU.AC.IR 10031947532846002095 10031947532846002095 No Department of physics, Science faculty , University of Arak – Arak , P.O. Box : 38156 - 879 Department of physics, Science faculty , University of Arak – Arak , P.O. Box : 38156 - 879 Maryam hosseinpour Maryam hosseinpour maryamhosseinpour35@yahoo.com 10031947532846002096 10031947532846002096 Yes Department of physics, Science faculty , University of Arak – Arak , P.O. Box : 38156 - 879 Department of physics, Science faculty , University of Arak – Arak , P.O. Box : 38156 - 879