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Reflectivity and Braggs Wavelength in FBG
Dinesh Arora, Jai Prakash, Hardeep Singh, Amit Wason
Pages - 341 - 349 | Revised - 01-11-2011 | Published - 15-12-2011
Published in International Journal of Engineering (IJE)
MORE INFORMATION
KEYWORDS
Fiber Bragg Grating, Bragg Wavelength, Reflection, Number of Grids, Grating Length, Pitch
ABSTRACT
We have presented an analytical model of splitters based on Fiber Bragg grating used to detect a Bragg wavelength from the number of wavelengths which are traveling in an optical fiber. The number of grids and grating length can be used as a wavelength shifter.This paper presents experimental results that are used to show the effect of number of grids and the length of the grating on the Bragg wavelength and reflectivity of Fiber Bragg Grating (FBG). The pitch of grating is directly proportional to the grating length and inversely proportional to number of grids. When the grating length is fixed and the number of grids is increased, the Bragg wavelength decreases and reflectivity increases. This increase in reflectivity is very small. Further when the number of grids was kept constant and the grating length was increased the Bragg wavelength increases. The effect of this increase in grating length on reflectivity is a very small. In our model, the effectiveness of the grating in extracting the Braggs wavelength is nearly 100%.
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Mr. Dinesh Arora
Research Scholar (ECE) - India
ecedinesh@rediffmail.com
Dr. Jai Prakash
- India
Associate Professor Hardeep Singh
Indo Global College of Engineering - India
Dr. Amit Wason
Rayat & Bahra Institute of Engineering & Bio-Technology, - India
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