Fundamental limit for gain and resolution in analog optical edge detection | Zendy

Parisa Karimi | Zendy; Amin Khavasi | Zendy; Seyed Saleh Mousavi Khaleghi | Zendy

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Fundamental limit for gain and resolution in analog optical edge detection

Author(s) -

Parisa Karimi,

Amin Khavasi,

Seyed Saleh Mousavi Khaleghi

Publication year - 2019

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.379492

Subject(s) - differentiator , figure of merit , optics , limit (mathematics) , resolution (logic) , physics , computer science , bandwidth (computing) , telecommunications , mathematics , mathematical analysis , artificial intelligence

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.

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