Calculating Reflectivity of Fiber Bragg Grating for Different Apodization Techniques

Calculating Reflectivity of Fiber Bragg Grating for Different Apodization Techniques

Payel Halder  Arpan Deyasi 

Department of Electronics and Communication Engineering, RCC Institute of Information Technology, Canal South Road, Beliaghata, Kolkata 700015, India

Corresponding Author Email: 
payelh139@gmail.com, deyasi_arpan@yahoo.co.in
Page: 
117-125
|
DOI: 
https://doi.org/10.18280/mmc_a.900201
Received: 
25 September 2017
|
Accepted: 
27 September 2017
|
Published: 
30 June 2017
| Citation

OPEN ACCESS

Abstract: 

In this paper reflectivity spectra of fiber Bragg grating structure for different appodization techniques are computed and plotted as a function of operating wavelength with 1.55nm central value. Computation is made using coupled mode approach and variation of index change is considered as the turning parameter along with grating length. Result is compared with that obtained in absence of appodization thus variation of bandwidth due to deformation in wave shape is investigated. Simulated results are critically important for calculating reflectivity for practical application.

Keywords: 

apodization, gaussian, raised-cosine, hyperbolic-tangent, reflectivity, fiber bragg grating

1. Introduction
2. Mathematical Modeling
3. Results and Discussion
4. Conclusion
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