N
Nima Davoudzadeh
Researcher at Southern Illinois University Carbondale
Publications - 15
Citations - 83
Nima Davoudzadeh is an academic researcher from Southern Illinois University Carbondale. The author has contributed to research in topics: Optical amplifier & Optical performance monitoring. The author has an hindex of 4, co-authored 15 publications receiving 69 citations. Previous affiliations of Nima Davoudzadeh include Amirkabir University of Technology & University of Tehran.
Papers
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Custom fabrication and mode-locked operation of a femtosecond fiber laser for multiphoton microscopy
TL;DR: This work presents a practical protocol to fabricate an all-normal-dispersion ytterbium (Yb)-doped femtosecond fiber laser oscillator using commercially-available parts as well as basic fiber splicing and laser pulse characterization equipment.
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On linearity of all optical asynchronous binary delta–sigma modulator
TL;DR: In this article, a simple all-optical delta-sigma modulator, using the gain modulation in optically coupled single mode ring lasers, is described, which meets the requirements of high-speed dynamic response, input/averaged-output linearity, and functioning without external clock.
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All-optical proteretic (reversed-hysteretic) bi-stable device
TL;DR: In this article, a design and simulation of an all-optical proteretic bi-stable device with a reversed hysteresis has been presented, which increases the oscillation frequency of a feedback system with a relaxation dynamics.
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All optical asynchronous binary delta–sigma modulator
TL;DR: In this paper, a tri-coupled ring geometry is utilized, resulting in resonance which is a building block for delta-sigma modulators, and the experimental result of the implemented setup is in a good agreement with the presented theory.
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Suppressed Field Emission Screening Effect and Electric Field Simulation of Carbon Nanotube-Based Triode Field Emitters
Javad Koohsorkhi,Nima Davoudzadeh,Shamsoddin Mohajerzadeh,Ebrahin Asl Soleimani,Hasan Ghafouri Fard +4 more
TL;DR: In this article, the electric field simulation of carbon nanotubes triode field emission devices is investigated and the geometry of CNTs and their arrangement on the substrate affect the screening effect and filed enhancement factor (β).