Wave Peak and Dispersion in Transmission of Bragg Grating Coupler

Romi Fadli Syahputra, Toto Saktioto, Ros Meri, Okfalisa Okfalisa, Syamsudhuha Syamsudhuha


This paper describes a numerical experiment of design and operation of a fiber coupler between single mode fiber and fiber Bragg grating (FBG). A characterization of fiber coupler is simulated by varying long grating of 10mm to 60mm using transfer matrix method based on coupled mode equation. The wave peak, transmission, and dispersion parameters are analyzed to determine the performance of the fiber coupler. The transmission spectrum showed the wave peaks rise to any increase in the grating length on channel 1 and channel 2. Transmission on channel 1 and channel 2 decreased from the  wavelength range of 1.45 µm – 1.55 µm and rised in the range of 1,55 µm – 1,65 µm for each increment in length of grating. The dispersion showed the zero dispersion at specific wavelength for each increase in length of grating.


Fiber coupler; Fiber Bragg grating (FBG); Transmission spectrum


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DOI: http://dx.doi.org/10.12928/telkomnika.v15i3.6383


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