| Biography | |
|---|---|
 Prof. A. Afroozeh University of Larestan, Iran |
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| Title: Fast and slow Light Generation Based on MRR | |
| Abstract: Control of light is the propagation of optical pulse in a particular medium with a higher or less speed of group velocities than vacuum speed light. These are significant interest in the use of nonlinear optics to generate slow and fast light for many applications such as secured optical communications, radio over frequency and memory as optical buffer. In this work, micro ring resonator system based on a semiconductor structure is to generate slow, fast light and terahertz pulse using bright soliton and Gaussian pulse as an input pulse. By analysis mathematics and scattering matrix method, simulated the result by the Matlab program which is generally applicable to a broad class of fast and slow light devices. In this research, micro ring structures which are built up by InGaAsP/InP, GaAlAs/GaAs and hydrogenated amorphous silicon structures. It will get extremely small optical buffers with dimensions delay time. The results will show the rate of delay time in the proposed waveguide and system. The results have shown of femtosecond generation from semiconductor materials which have been used to make MRR’s. Therefore extremely narrow soliton pulse in the range of 98 to 8 fs as could be generated using three waveguides. We examine for the second time how slow light may be achieved in microring resonators while bright and Gaussian pulse propagates inside the ring. Delay time and FWHM have simulated within an optical link and have calculated. Finally terahertz pulse has presented using PANDA ring resonator for application in Rof and medical. The results obtained have shown that high channel of frequency can be obtained in the range of 170-250 THz for bright soliton and 75-360 THz for Gaussian beam. This enhancement of frequency band can provide the reliable high-speed between networks and computers. It has demonstrated a novel technique for improving performance by bright soliton pulse and Gaussian pulse at the input and then recompressing the pulse at the output. | |
| Biography: Abdolkarim Afroozeh completed his MSc in the field of Astronomy at Shiraz University, Iran, in 2001. He was awarded a PhD degree in photonics from UniversitiTeknologi Malaysia (UTM) in 2014. ). He has 100 ISI published papers, H-index-27. His current researches of interest are Microring, Optical Soliton Communications, Laser Physics, photonics, Nonlinear fiber optics, Quantum Cryptography, Nanotechnology, Biomedical Physics and Biotechnology Engineering.He is currently the assistant Professor at University of Larestan. | |
