Journal ArticleDOI
A novel proposal for all-optical 1-bit comparator using nonlinear PhCRRs
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TLDR
A novel structure for realizing an all-optical comparator, which can compare two 1-bit binary codes is proposed, which used three nonlinear resonant rings for this purpose.Abstract:
All-optical comparators play crucial roles in all-optical data processing systems. In this paper, we proposed a novel structure for realizing an all-optical comparator, which can compare two 1-bit binary codes. For this purpose, we used three nonlinear resonant rings. The final structure has two input and three output ports. The maximum rise and fall times for the proposed structure are about 1.5 and 2 ps, respectively.read more
Citations
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Journal ArticleDOI
A novel proposal for all optical half-subtractor based on photonic crystals
TL;DR: In this paper, an all optical half subtractor using photonic crystal structure is proposed and the proposed structure will be realized using both threshold switching and beam interference using Finite Difference Time Domain (DFD) method.
Journal ArticleDOI
Ultra-compact terahertz all-optical logic comparator on GaAs photonic crystal platform
TL;DR: In this paper, an all-optical comparator is designed and simulated using two-dimensional photonic crystals and a combination of linear and point defects has been used in the proposed structure.
Journal ArticleDOI
Optical 1-bit comparator based on two-dimensional photonic crystals
TL;DR: In this article, an optical comparator was designed and simulated based on photonic crystals and point and linear defects were also used in the proposed comparator, which can be used in today's optical telecommunication circuits.
Journal ArticleDOI
An all-optical half subtractor based on Kerr effect and photonic crystals
TL;DR: In this article, a new structure for realizing an all-optical half subtractor based on photonic crystal nonlinear ring resonators was proposed, which is one of the optical logic gates which is very important for realizing all optical computing systems.
Journal ArticleDOI
Realization of an all-optical comparator using beam interference inside photonic crystal waveguides.
TL;DR: This paper design and propose an all-optical 1-bit comparator using optical beam interference, where the logic states of input ports are determined based on their initial phases and that of the output ports based on the amplitude of the optical signal.
References
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Journal ArticleDOI
Optical multi-mode interference devices based on self-imaging: principles and applications
LB Soldano,E.C.M. Pennings +1 more
TL;DR: The underlying self-imaging principle in multimode waveguides is described using a guided mode propagation analysis and it is shown that multimode interference couplers offer superior performance, excellent tolerance to polarization and wavelength variations, and relaxed fabrication requirements when compared to alternatives such as directional coupling.
Journal ArticleDOI
All-optical ultracompact photonic crystal AND gate based on nonlinear ring resonators
Parisa Andalib,Nosrat Granpayeh +1 more
TL;DR: In this paper, an ultracompact all-optical photonic crystal AND gate based on nonlinear ring resonators was proposed, which can operate with a bit rate of about 120 Gbits/s.
Journal ArticleDOI
Optical channel drop filters based on photonic crystal ring resonators
TL;DR: In this paper, a new optical channel drop filters (CDFs) configuration based on photonic crystals ring resonators (PCRRs) is provided, and the transmission characteristics for single-ring and multiple-ring configurations have been investigated by using the 2D finite-difference time-domain (FDTD) technique in triangular lattice photonic crystal (PC) silicon rods.
Journal ArticleDOI
A Novel Proposal for All Optical Analog-to-Digital Converter Based on Photonic Crystal Structures
TL;DR: A novel all optical analog-to-digital (ADC) converter based on photonic crystals is proposed by combining the nonlinear demultiplexer with the optical coder for producing discrete levels of input optical intensity.
Journal ArticleDOI
All optical 2-bit analog to digital converter using photonic crystal based cavities
TL;DR: In this article, a nonlinear 3-channel demultiplexer is used to quantize the input analog signal according to its optical intensity and the coder will convert the quantized levels into 2-bit binary codes.