Design and Modeling of 1 Gbps Directed Optical XOR/OR Gates Using Integrated Semiconductor Ring Lasers
01 Jul 2019-
TL;DR: In this paper, a novel design of optical XOR/OR gate operating at 1 Gbps and implemented by directed logic using integrated semiconductor ring lasers is presented, which is simple to implement with no optical non-linearities required for switching operation.
Abstract: A novel design of optical XOR/OR gate operating at 1 Gbps and implemented by directed logic using integrated semiconductor ring lasers is presented. The proposed design is simple to implement with no optical non-linearities required for switching operation. Modeling of proposed logic gates is performed using the rate equations for counter-propagating electric fields inside the ring lasers.
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01 Sep 2020
TL;DR: In this paper, nonlinearities in the semiconductor ring laser (SRL) are incorporated in the analysis of directed optical logic gates and their effects on the output are studied.
Abstract: Nonlinearities in the semiconductor ring laser (SRL) are incorporated in the analysis of directed optical logic gates and their effects on the output are studied. The paper discusses the effects of gain medium linewidth, internal quantum efficiency and self and cross gain saturation on the output of directed optical NOT gate implemented using SRLs.
Cites background from "Design and Modeling of 1 Gbps Direc..."
...The author has demonstrated a simple design of all-optical NOT and XOR gates using semiconductor ring lasers (SRL) in previous publication [4]....
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...1 and its detailed working is explained in our previous publication [4]....
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TL;DR: On the run towards making a photonic processor, which uses the photons of visible light rather than electric current to perform digital computations, this paper proposes all optical digital logic gate library consisting of NOR, OR, AND, XOR, and two compound gates.
Abstract: On the run towards making a photonic processor, which uses the photons of visible light rather than electric current to perform digital computations we propose all optical digital logic gate library consisting of NOR, OR, AND, XOR, and two compound gates. These gates which are designed using semiconductor ring lasers (SRL) are analyzed and modeled by developing rate equations. This digital library can be used in any CAD tool developed to design integrated pho- tonics components. The phenomenon of injection locking is used for the realization of logic gates.
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"Design and Modeling of 1 Gbps Direc..." refers background in this paper
...Most of the designs involving microring resonators use optical nonlinear effects such as two photon absorption, four wave mixing, cross phase modulation [3] or injection locking [4] to perform logical operations on optical signals....
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