期刊
OPTICS EXPRESS
卷 28, 期 2, 页码 898-911出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.379492
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资金
- Iran National Science Foundation [96008035]
In this paper, the relation between gain and resolution of an ideal analog optical differentiator in two different cases and their fundamental limits are investigated. Based on this relation, a figure of merit for comparison of the designed differentiators in recent papers is proposed. The differentiators are optimized using this figure of merit, and they are compared with each other to determine the best one. Also, a new differentiator is presented based on the dielectric slab waveguide in which the trade-off between its gain and resolution is easily controllable, and its best operating point is determined. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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