اثرات پارامترهای ساختاری بر مشخصات فیلتر افزایشی/کاهشی

An add/drop filter is consisted of two straight waveguides and a microring resonator (MRR) whichis an important component of optical circuits. In this paper the effects of structural parameterssuch as gap between the waveguides and the MRR, width of the waveguides and the MRR andMRR radius are studied. These parameters affect the functionality of the system and itscharacteristics such as frequency spectrum, center wavelength, output intensity and free spectralrange (FSR). These results are investigated: increasing the MRR radius decreases the FSR,enhancing the width first increases the amount of light coupled to the MRR and then decreases itand increasing the gap shifts the center wavelength to the higher values. The properties of thisadd/drop filter, are numerically investigated by the finite-difference time-domain (FDTD) method.

کلیدواژه ها:

اسپکتروم فرکانسی ، ریزتشدیدکننده حلقوی ، طول موج مرکزی ، فیلتر افزایشی/کاهشی ، محدوده طیفی آزاد