Libish, T M and Bobby, M C and Linesh, J and Biswas, Palas and Bandyopadhyay, Somnath and Dasgupta, Kamal and Radhakrishnan, P (2011) The effect of grating period on refractive index sensitivity of long period gratings written in hydrogen loaded SMF-28 fiber. Journal of Optoelectronics and Advanced Materials, 13 (5-6). pp. 491-496. ISSN 1454-4164

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In this paper, the influence of grating period of Long Period Grating (LPG) on refractive index sensitivity is experimentally investigated. Two LPGs with grating periods 415 mu m and 550 mu m are used to carry out the experimental study. The fundamental principle of analysis is the sensitive dependence of the resonance peaks of an LPG on the changes in the refractive index of the medium surrounding the cladding surface of the grating. The response of the LPG to refractive indices greater than and less than that of cladding is studied by monitoring the wave length shift and amplitude changes of the attenuation bands.

Item Type: Article
Uncontrolled Keywords: Long Period Grating; Refractive index sensor; Chemical sensor
Subjects: Processing Science
Divisions: Fiber Optics and Photonics
Depositing User: Bidhan Chaudhuri
Date Deposited: 16 Jan 2012 12:14
Last Modified: 25 Feb 2013 08:12

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