fa Design and Fabrication of Tapered Fiber Optics Sensor for Biosensing Application تخصصی Special پژوهشي Research <p dir="ltr">This article presents design and fabrication of a biosensor based on tapered fiber by measuring the output spectrum in the presence of liquids with different refractive indices. The fiber taper was made by oxy-butane torch. The spectrum is obtained using a broadband light source and an optical spectrum analyzer (OSA), in the wavelength range of 40nm. The effect of changing the refractive index on output spectrum was investigated. It is shown that by increasing the refractive index of the surrounding environment, the output spectrum is shifted and a sensitivity of the order of 0.1 nm/RIU is obtained.</p> <p dir="ltr">This article presents design and fabrication of a biosensor based on tapered fiber by measuring the output spectrum in the presence of liquids with different refractive indices. The fiber taper was made by oxy-butane torch. The spectrum is obtained using a broadband light source and an optical spectrum analyzer (OSA), in the wavelength range of 40nm. The effect of changing the refractive index on output spectrum was investigated. It is shown that by increasing the refractive index of the surrounding environment, the output spectrum is shifted and a sensitivity of the order of 0.1 nm/RIU is obtained.</p> Tapered fiber, biosensor, refractive index, biological buffers Tapered fiber, biosensor, refractive index, biological buffers 1065 1068 http://opsi.ir/browse.php?a_code=A-10-1-1186&slc_lang=fa&sid=1 Mahdi Heydari Dayeni Mahdi Heydari Dayeni 10031947532846005037 10031947532846005037 Yes Iran University of Science and Technology Iran University of Science and Technology Mohammad Vahedi Mohammad Vahedi 10031947532846005038 10031947532846005038 No Iran University of Science and Technology Iran University of Science and Technology Mohammad Taheri Mohammad Taheri 10031947532846005039 10031947532846005039 No Iran University of Science and Technology Iran University of Science and Technology Hussein Saghafifar Hussein Saghafifar 10031947532846005040 10031947532846005040 No Malek Ashtar University of Technology Malek Ashtar University of Technology