Author(s): DINESH ARORA | Dr. JAI PRAKASH | HARDEEP SINGH | Dr. AMIT WASON
Journal: International Journal of Engineering Science and Technology
ISSN 0975-5462
Volume: 3;
Issue: 9;
Start page: 7096;
Date: 2011;
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Keywords: Fiber Bragg Grating | Reflectivity | Grating length | Effective refractive index of Grating.
ABSTRACT
The Fiber Bragg Gratings have been used extensively in the communication industry. Fiber Bragg grating is written directly into the core of the optical fiber and it is quite an attractive technique for wavelength splitter since it provides high reflectivity at a certain wavelength, with negligible transmission losses for others, providing a wavelength-channel selection with low crosstalk between adjacent channels.In this paper we propose a Fiber Bragg Grating base splitter with alteration of effective refractive index of grating for Ethernet passive optical network. With the increase in the effective refractive index the reflectivity of grating is increased. We analysed the effect of effective refractive index on reflectivity of grating. In our work the Bragg wavelength has been fixed at 1550 nm,length of the grating as 10mm and with effective refractive index as 4.0 it has been found that the reflectivity of the grating or the effectiveness of the grating in extracting the wavelength is 92-93%.
Journal: International Journal of Engineering Science and Technology
ISSN 0975-5462
Volume: 3;
Issue: 9;
Start page: 7096;
Date: 2011;
VIEW PDF
DOWNLOAD PDF Original pageKeywords: Fiber Bragg Grating | Reflectivity | Grating length | Effective refractive index of Grating.
ABSTRACT
The Fiber Bragg Gratings have been used extensively in the communication industry. Fiber Bragg grating is written directly into the core of the optical fiber and it is quite an attractive technique for wavelength splitter since it provides high reflectivity at a certain wavelength, with negligible transmission losses for others, providing a wavelength-channel selection with low crosstalk between adjacent channels.In this paper we propose a Fiber Bragg Grating base splitter with alteration of effective refractive index of grating for Ethernet passive optical network. With the increase in the effective refractive index the reflectivity of grating is increased. We analysed the effect of effective refractive index on reflectivity of grating. In our work the Bragg wavelength has been fixed at 1550 nm,length of the grating as 10mm and with effective refractive index as 4.0 it has been found that the reflectivity of the grating or the effectiveness of the grating in extracting the wavelength is 92-93%.