Design and modeling of multi-operation bit-manipulator logic circuit using lithium niobate waveguides

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Anu Kumari ◽  
Vivek Kumar Srivastava ◽  
Amrindra Pal ◽  
Sandeep Sharma
Keyword(s):  
Lithium Niobate ◽  
Insertion Loss ◽  
High Performance ◽  
Optical Switching ◽  
Extinction Ratio ◽  
Optical Design ◽  
Contrast Ratio ◽  
Logic Circuit ◽  
Switching Element ◽  
Niobate Lithium

Abstract In this work, a high-performance multioperation bit-manipulator is presented. The presented electro-optical design can perform several bit-manipulations such as bidirectional bit-shifting, bit-rotation, multiply-by-2 and divide-by-2, and sequence designing operation. The technique relies on the electrooptic principle in lithium niobate. Lithium niobate-based waveguides have been used to design Mach–Zehnder interferometer, which is the fundamental optical switching element of the whole model. Extinction ratio, contrast ratio, and insertion loss values computed for the simulated results are 29.16 dB, 29.48 dB, and 0.77 dB, respectively.

scholarly journals Multilayer optical interconnects design: switching components and insertion loss reduction approach

2018 ◽  
Vol 69 (3) ◽  
pp. 226-232
Author(s):  
Mohammad Reza Mokhtari ◽  
Hamed Baghban ◽  
Hadi Soofi
Keyword(s):  
Insertion Loss ◽  
High Performance ◽  
Extinction Ratio ◽  
Single Layer ◽  
Loss Reduction ◽  
Low Loss ◽  
Switched Networks ◽  
Average Loss ◽  
Switch Design ◽  
Silicon Based

Abstract The next generation of chip multi-processors point to the integration of thousands of processing cores, demanding high- performance interconnects, and growing the interest in optically interconnected networks. In this article we report on an interlayer silicon-based switch design that switches two channels simultaneously from an input waveguide into one of the two output ports. The introduced interlayer switch allows to design interconnects with previously unattainable functionality, higher performance and robustness, and smaller footprints with low insertion loss (< 1 dB), and high extinction ratio (> 18 dB). Interlayer switching combined with wavelength-routed and circuit-switched networks yield a low latency and low- loss interconnect architecture. Quantitative comparison between the proposed interconnect architecture and other reported structures in terms of loss, number of wavelengths and microring resonators reveals the proficiency of our design. For a 64-core interconnect implemented in 4 layers, the proposed architecture indicates an average loss reduction up to 42% and 43% with respect to single-layer lambda-router and GWOR.

Design of multiplexing circuit using electro-optic effect based optical waveguides

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Bhawna Sharma ◽  
Vivek Kumar Srivastava ◽  
Aditya Pratap ◽  
Amrindra Pal ◽  
Sandeep Sharma
Keyword(s):  
Optical Waveguides ◽  
Optical Switching ◽  
Extinction Ratio ◽  
Contrast Ratio ◽  
Selection Line ◽  
Output Line ◽  
Combinational Circuit ◽  
Single Output ◽  
Multiple Data ◽  
Electro Optic

AbstractThe multiplexer is a combinational circuit that transfers multiple data inputs over a single output line. The input data are selected and transferred to the output line based on the selection line. In this work, 2 × 1 and 4 × 1 multiplexer is proposed. The proposed multiplexer has been worked out using the electro-optic principle. It is implemented using lithium niobate-based Mach–Zehnder interferometer (LN-MZI). LN-MZI is used as an optical switching device. The performance parameters extinction ratio, contrast ratio and insertion loss have been computed and found 31.31, 28.02 and 0.043 dB respectively.

Optical switching in an asymmetric Fabry–Perot with high contrast ratio and very low insertion loss

1991 ◽  
Vol 27 (8) ◽  
pp. 659 ◽  
Author(s):  
J.F. Heffernan ◽  
M.H. Moloney ◽  
J. Hegarty ◽  
J.S. Roberts
Keyword(s):  
Insertion Loss ◽  
Optical Switching ◽  
Contrast Ratio ◽  
High Contrast ◽  
Fabry Perot ◽  
Low Insertion Loss

Array of Mach Zehnder Modulators for Realization of Parity Generator/Checker

2019 ◽  
Vol 8 (12) ◽  
pp. 2732-2737
Keyword(s):  
Computer Simulation ◽  
Lithium Niobate ◽  
Simulation Model ◽  
Optical Communication ◽  
Optical Switching ◽  
Extinction Ratio ◽  
Power Imbalance ◽  
Switching Device ◽  
Electro Optic ◽  
Parity Generator

The electro-optic effect is one of the most important techniques for modulation and switching purpose in optical communication. The Mach–Zehnder interferometer (MZI) structure functioning on the principle of electro-optic effect behaves as the influential optical switching device. This paper contains discussion of electro-optic effect based MZI structure and its efficient application to construct parity generator and checker. Titanium (Ti) in-diffused lithium niobate profile of MZI through computer simulation has been used for this purpose. Basic 2*2 switch is transformed as MZI for the design of parity device over a functional wavelength range of 1.3 µm to 1.65µm. This simulated design is analyzed with different Ti-LiNbO3 stripe thicknesses, in order to attain the optimum Ti-LiNbO3 stripe thickness and also to improve the performance of the switch on its crosstalk, power imbalance, extinction ratio and transition losses. The simulation model of proposed optical parity device has been implemented using the OptiBPM and OptiSystem softwares have been used for suitable verification of the discussed schemes.

Use of the Magnetostatic Analogue In Electromagnetic Lens Engineering

1970 ◽  
Vol 28 ◽  
pp. 360-361
Author(s):  
John W. Coleman
Keyword(s):  
Boundary Conditions ◽  
High Performance ◽  
Force Fields ◽  
Optical Design ◽  
Direct Conversion ◽  
Design Engineering ◽  
Design Data ◽  
Scalar Potentials ◽  
Geometric Elements ◽  
At Will

In the design engineering of high performance electromagnetic lenses, the direct conversion of electron optical design data into drawings for reliable hardware is oftentimes difficult, especially in terms of how to mount parts to each other, how to tolerance dimensions, and how to specify finishes. An answer to this is in the use of magnetostatic analytics, corresponding to boundary conditions for the optical design. With such models, the magnetostatic force on a test pole along the axis may be examined, and in this way one may obtain priority listings for holding dimensions, relieving stresses, etc..The development of magnetostatic models most easily proceeds from the derivation of scalar potentials of separate geometric elements. These potentials can then be conbined at will because of the superposition characteristic of conservative force fields.

Polarization rotation-based all-optical AND gate using single semiconductor optical amplifier and implementation of a majority gate

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ashif Raja ◽  
Kousik Mukherjee ◽  
Jitendra Nath Roy
Keyword(s):  
Semiconductor Optical Amplifier ◽  
Extinction Ratio ◽  
Contrast Ratio ◽  
Optical Amplifier ◽  
Majority Voting ◽  
Polarization Rotation ◽  
All Optical ◽  
Eye Opening ◽  
Amplified Spontaneous Emission Noise ◽  
Quality Factor Q

Abstract Semiconductor optical amplifier-based polarization rotation is utilized in designing all-optical AND gate at 100 Gbps. The AND gate shows high extinction ratio (ER ∼ 15 dB), contrast ratio (CR ∼ 18 dB) and quality factor (Q-factor ∼ 16 dB). The effect of the amplified spontaneous emission noise on the performances is also investigated. The AND gate has relative eye opening (REO) varying from 93.52 to 97.1% for 10–30 dB unsaturated gain. Using the AND gate a majority voting gate is designed and analyzed and has Q ∼ 11.7 dB with REO ∼ 91%.

scholarly journals High-Performance Ultra-Thin Spectrometer Optical Design Based on Coddington’s Equations

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 323
Author(s):  
Zhiwei Feng ◽  
Guo Xia ◽  
Rongsheng Lu ◽  
Xiaobo Cai ◽  
Hao Cui ◽  
...  
Keyword(s):  
High Resolution ◽  
Spectral Resolution ◽  
High Performance ◽  
Optical Design ◽  
Pixel Size ◽  
Simulation Design ◽  
Central Wavelength ◽  
Spot Radius ◽  
Unique Method ◽  
Almost All

A unique method to design a high-throughput and high-resolution ultrathin Czerny–Turner (UTCT) spectrometer is proposed. This paper reveals an infrequent design process of spectrometers based on Coddington’s equations, which will lead us to develop a high-performance spectrometer from scratch. The spectrometer is composed of cylindrical elements except a planar grating. In the simulation design, spot radius is sub-pixel size, which means that almost all of the energy is collected by the detector. The spectral resolution is 0.4 nm at central wavelength and 0.75 nm at edge wavelength when the width of slit is chosen to be 25 μm and the groove density is 900 lines/mm.

Low insertion loss and high extinction ratio analysis of a new surface plasmon resonance based photonic crystal fiber filter

Optik ◽  
2019 ◽  
Vol 194 ◽  
pp. 163069 ◽  
Author(s):  
Kawsar Ahmed ◽  
Md. Ferdous ◽  
Md. Nazmul Hossen ◽  
Bikash Kumar Paul ◽  
I.S. Amiri ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Surface Plasmon ◽  
Insertion Loss ◽  
Plasmon Resonance ◽  
Extinction Ratio ◽  
Ratio Analysis ◽  
Crystal Fiber ◽  
Low Insertion Loss

Low Insertion Loss Waveguides in Lithium Niobate using Multi-Scan Femtosecond Inscription

2007 ◽  
Author(s):  
H. T. Bookey ◽  
R. R. Thomson ◽  
N. D. Psaila ◽  
A. K. Kar ◽  
N. Chiodo ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Insertion Loss ◽  
Low Insertion Loss
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