Ring Resonator Systems To Perform Optical Communication Enhancement Using Soliton

Author : Iraj Sadegh Amiri,Abdolkarim Afroozeh
Publisher : Springer
Page : 70 pages
File Size : 53,6 Mb
Release : 2014-08-27
Category : Technology & Engineering
ISBN : 9789812871978

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Ring Resonator Systems to Perform Optical Communication Enhancement Using Soliton by Iraj Sadegh Amiri,Abdolkarim Afroozeh Pdf

The title explain new technique of secured and high capacity optical communication signals generation by using the micro and nano ring resonators. The pulses are known as soliton pulses which are more secured due to having the properties of chaotic and dark soliton signals with ultra short bandwidth. They have high capacity due to the fact that ring resonators are able to generate pulses in the form of solitons in multiples and train form. These pulses generated by ring resonators are suitable in optical communication due to use the compact and integrated rings system, easy to control, flexibility, less loss, application in long distance communication and many other advantages. Using these pulses overcome the problems such as losses during the propagation, long distances, error detection, using many repeaters or amplifiers, undetectable received signals, pulse broadening, overlapping and so on. This book show how to generate soliton pulses using ring resonators in the micro and nano range which can be used in optical communication to improve the transmission technique and quality of received signals in networks such as WiFi and wireless communication.

Author : Iraj Sadegh Amiri,Harith Ahmad
Publisher : Springer
Page : 51 pages
File Size : 43,5 Mb
Release : 2015-05-07
Category : Technology & Engineering
ISBN : 9789812875587

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Optical Soliton Communication Using Ultra-Short Pulses by Iraj Sadegh Amiri,Harith Ahmad Pdf

This brief analyzes the characteristics of a microring resonator (MRR) to perform communication using ultra-short soliton pulses. The raising of nonlinear refractive indices, coupling coefficients and radius of the single microring resonator leads to decrease in input power and round trips wherein the bifurcation occurs. As a result, bifurcation or chaos behaviors are seen at lower input power of 44 W, where the nonlinear refractive index is n2=3.2×10−20 m2/W. Using a decimal convertor system, these ultra-short signals can be converted into quantum information. Results show that multi solitons with FWHM and FSR of 10 pm and 600 pm can be generated respectively. The multi optical soliton with FWHM and FSR of 325 pm and 880 nm can be incorporated with a time division multiple access (TDMA) system wherein the transportation of quantum information is performed.

Author : Iraj Sadegh Amiri,Abdolkarim Afroozeh,Harith Ahmad
Publisher : CRC Press
Page : 164 pages
File Size : 52,6 Mb
Release : 2016-12-08
Category : Computers
ISBN : 9781317404842

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Integrated Micro-Ring Photonics by Iraj Sadegh Amiri,Abdolkarim Afroozeh,Harith Ahmad Pdf

Micro-ring resonators (MRRs) are employed to generate signals used for optical communication applications, where they can be integrated in a single system. These structures are ideal candidates for very large-scale integrated (VLSI) photonic circuits, since they provide a wide range of optical signal processing functions while being ultra-compact. Soliton pulses have sufficient stability for preservation of their shape and velocity. Technological progress in fields such as tunable narrow band laser systems, multiple transmission, and MRR systems constitute a base for the development of new transmission techniques. Controlling the speed of a light signal has many potential applications in fiber optic communication and quantum computing. The slow light effect has many important applications and is a key technology for all optical networks such as optical signal processing. Generation of slow light in MRRs is based on the nonlinear optical fibers. Slow light can be generated within the micro-ring devices, which will be able to be used with the mobile telephone. Therefore, the message can be kept encrypted via quantum cryptography. Thus perfect security in a mobile telephone network is plausible. This research study involves both numerical experiments and theoretical work based on MRRs for secured communication.

Author : Iraj Sadegh Amiri,Sayed Ehsan Alavi,Sevia Mahdaliza Idrus
Publisher : Springer
Page : 66 pages
File Size : 48,7 Mb
Release : 2014-07-24
Category : Technology & Engineering
ISBN : 9789812871619

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Soliton Coding for Secured Optical Communication Link by Iraj Sadegh Amiri,Sayed Ehsan Alavi,Sevia Mahdaliza Idrus Pdf

Nonlinear behavior of light such as chaos can be observed during propagation of a laser beam inside the microring resonator (MRR) systems. This Brief highlights the design of a system of MRRs to generate a series of logic codes. An optical soliton is used to generate an entangled photon. The ultra-short soliton pulses provide the required communication signals to generate a pair of polarization entangled photons required for quantum keys. In the frequency domain, MRRs can be used to generate optical millimetre-wave solitons with a broadband frequency of 0–100 GHz. The soliton signals are multiplexed and modulated with the logic codes to transmit the data via a network system. The soliton carriers play critical roles to transmit the data via an optical communication link and provide many applications in secured optical communications. Therefore, transmission of data information can be performed via a communication network using soliton pulse carriers. A system known as optical multiplexer can be used to increase the channel capacity and security of the signals.

Author : Iraj Sadegh Amiri,Abdolkarim Afroozeh,Harith Ahmad
Publisher : CRC Press
Page : 174 pages
File Size : 52,7 Mb
Release : 2016-12-08
Category : Computers
ISBN : 9781317404835

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Integrated Micro-Ring Photonics by Iraj Sadegh Amiri,Abdolkarim Afroozeh,Harith Ahmad Pdf

Micro-ring resonators (MRRs) are employed to generate signals used for optical communication applications, where they can be integrated in a single system. These structures are ideal candidates for very large-scale integrated (VLSI) photonic circuits, since they provide a wide range of optical signal processing functions while being ultra-compact. Soliton pulses have sufficient stability for preservation of their shape and velocity. Technological progress in fields such as tunable narrow band laser systems, multiple transmission, and MRR systems constitute a base for the development of new transmission techniques. Controlling the speed of a light signal has many potential applications in fiber optic communication and quantum computing. The slow light effect has many important applications and is a key technology for all optical networks such as optical signal processing. Generation of slow light in MRRs is based on the nonlinear optical fibers. Slow light can be generated within the micro-ring devices, which will be able to be used with the mobile telephone. Therefore, the message can be kept encrypted via quantum cryptography. Thus perfect security in a mobile telephone network is plausible. This research study involves both numerical experiments and theoretical work based on MRRs for secured communication.

Author : Preecha Yupapin,Chat Teeka,J. Ali
Publisher : CRC Press
Page : 275 pages
File Size : 45,9 Mb
Release : 2012-05-02
Category : Technology & Engineering
ISBN : 9781439893913

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Nanoscale Nonlinear PANDA Ring Resonator by Preecha Yupapin,Chat Teeka,J. Ali Pdf

Microring/nanoring resonator is an interesting device that has been widely studied and investigated by researchers from a variety of specializations. This book begins with the basic background of linear and nonlinear ring resonators. A novel design of nano device known as a PANDA ring resonator is proposed. The use of the device in the form of a PANDA in applications such as nanoelectronics, measurement, communication, sensors, optical and quantum computing, drug delivery, hybrid transistor and a new concept of electron-hole pair is discussed in detail.

Author : Suzairi Daud,Sevia Mahdaliza Idrus,Jalil Ali
Publisher : Springer
Page : 100 pages
File Size : 45,5 Mb
Release : 2015-03-17
Category : Science
ISBN : 9783319154855

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Simulation of Optical Soliton Control in Micro- and Nanoring Resonator Systems by Suzairi Daud,Sevia Mahdaliza Idrus,Jalil Ali Pdf

This book introduces optical soliton control in micro- and nanoring resonator systems. It describes how the ring resonator systems can be optimized as optical tweezers for photodetection by controlling the input power, ring radii and coupling coefficients of the systems. Numerous arrangements and configurations of micro and nanoring resonator systems are explained. The analytical formulation and optical transfer function for each model and the interaction of the optical signals in the systems are discussed. This book shows that the models designed are able to control the dynamical behaviour of generated signals.

Author : Preecha Yupapin,Jalil Ali
Publisher : CRC Press
Page : 183 pages
File Size : 47,8 Mb
Release : 2013-08-28
Category : Technology & Engineering
ISBN : 9781466592353

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Small Scale Optics by Preecha Yupapin,Jalil Ali Pdf

The behavior of light in small scale optics or nano/micro optical devices has shown promising results, which can be used for basic and applied research, especially in nanoelectronics. Small Scale Optics presents the use of optical nonlinear behaviors for spins, antennae, and whispering gallery modes within micro/nano devices and circuits, which can be used in many applications. This book proposes a new design for a small scale optical device—a microring resonator device. Most chapters are based on the proposed device, which uses a configuration know as a PANDA ring resonator. Analytical and numerical methods demonstrate that many applications can be exploited using this device, in particular when it is coated with metallic material. The book begins with the background and description of the PANDA ring resonator. The authors examine optical bistability in microring resonators and test the analytical results with those predicted by the OptiFDTD software package. They then describe their new design for a microring resonator device, which can be used to generate four forms of light on a chip, while also allowing the storing and harvesting of trapped atoms/molecules. The four behaviors of light, for instance, fast, slow, stopping, and storing, can be manipulated and seen simultaneously by using the PANDA ring planar waveguide, which can be fabricated and tested on-chip. Chapters examine optical spin, nano-antennas, optical mesh networks, micro-optical gyroscopes, and spin transport networks. They also address applications for optical devices, including molecular motors for drug discovery, short pulse lasers for treatment of cancer, microsurgery, nano-antenna use in radiotherapy, and neuron cell communications. There are many other possibilities of applications for the PANDA ring resonator, such as quantum coding, optical tweezers, and stopping light, which will play an important role in future optical devices.

Author : Bahram Barati,Iraj Sadegh Amiri
Publisher : Springer
Page : 48 pages
File Size : 42,6 Mb
Release : 2015-02-16
Category : Technology & Engineering
ISBN : 9789812874320

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In Silico Engineering of Disulphide Bonds to Produce Stable Cellulase by Bahram Barati,Iraj Sadegh Amiri Pdf

This Brief highlights different approaches used to create stable cellulase and its use in different fields. Cellulase is an industrial enzyme with a broad range of significant applications in biofuel production and cellulosic waste management. Cellulase 7a from Trichoderma reesei is the most efficient enzyme in the bio hydrolysis of cellulose. In order to improve its thermal stability, it can be engineered using a variety of approaches, such as hydrophobic interactions, aromatic interactions, hydrogen bonds, ion pairs and disulfide bridge creation.

Author : Preecha Yupapin
Publisher : World Scientific
Page : 116 pages
File Size : 54,7 Mb
Release : 2008
Category : Science
ISBN : 9789812779724

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Photonics and Nanotechnology by Preecha Yupapin Pdf

Photonics and nanotechnology are popular emerging fields of technology. This proceedings volume contains over 12 selected papers from the International Workshop and Conference on Photonics and Nanotechnology (ICPN) 2007, held in Pattaya, Thailand, from December 16-18, 2007. The papers cover a wide range of topics, from optical and nonlinear optical physics to nanoelectronics.

Author : A. Afroozeh,I. S. Amiri,A. Zeinalinezhad,Y. Farhang
Publisher : Createspace Independent Publishing Platform
Page : 66 pages
File Size : 52,6 Mb
Release : 2015-12-03
Category : Electronic
ISBN : 1519611552

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Microring Resonators by A. Afroozeh,I. S. Amiri,A. Zeinalinezhad,Y. Farhang Pdf

This study starts with design considerations, the functional behaviour, and key characteristics of the microring resonator and add/drop ring resonators allowing the performance of higher order filters. For nonlinear materials the basic equations to describe the formation and propagation of different types of optical solitons are well known. The resonance condition is satisfied when the circumference of the microring resonators, or generally the round-trip length, is equal to an integer multiple of the optical wavelength inside the medium. The chaotic behaviour of the multi output signals generated from these devices can be filtered using appropriate parameters. Optical chaos is observed in many non-linear optical systems. One of the most common examples is a microring resonator. Chaotic behaviour has been considered as a nonlinear property in physics, electronics and communication. Soliton is a self-reinforcing solitary wave (a wave packet or pulse) that maintains its shape while it travels at constant speed. Among all the types of solitons, optical vector solitons draw the most attention due to their wide range of applications, particularly in generating ultrafast pulses and light control technology. Dark solitons are much less stable due to the cross-interaction between the two polarization components. The bus waveguides of the microring resonator are cladded by silica, which serves both to improve modal con nement and facilitate wafer bonding for structural support. The source of nonlinear reaction is related to harmonic motion of bound electrons under the influence of an applied field. The total polarization P induced by electric dipoles is not linear in the electric field. The extent that the signal degrades depends on the purity of the glass and the wavelength of the transmitted light. This refractive index variation is responsible for the nonlinear optical effects of self-focusing, self-phase modulation and modulation instability, and is the basis for Kerr-lens mode locking. The quality factor of a resonator is a measure of the sharpness of the resonance. Therefore the optimum fabrication process can be obtained with respect to higher quality factor of the device. The phenomenon of optical bistability within the system arises from a combination of the nonlinearity in the radiation-matter interaction and of a feedback mechanism."

Author : Vijay Janyani,Ghanshyam Singh,Manish Tiwari,Tawfik Ismail
Publisher : Springer Nature
Page : 641 pages
File Size : 48,6 Mb
Release : 2020-04-28
Category : Technology & Engineering
ISBN : 9789811529269

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Optical and Wireless Technologies by Vijay Janyani,Ghanshyam Singh,Manish Tiwari,Tawfik Ismail Pdf

This volume presents selected papers from the 3rd International Conference on Optical and Wireless Technologies, conducted from 16th to 17th March, 2019. It focuses on extending the limits of currently used systems encompassing optical and wireless domains, and explores the latest developments in applications like photonics, high speed communication systems and networks, visible light communication, nano-photonics, wireless, and MIMO systems. The proceedings contain high quality scholarly articles, giving insight into the analytical, experimental, and developmental aspects of systems, techniques, and devices in these spheres. This volume will prove useful to researchers and professionals alike.

Author : Costantino De Angelis,Giuseppe Leo,Dragomir N. Neshev
Publisher : CRC Press
Page : 256 pages
File Size : 40,9 Mb
Release : 2020-05-20
Category : Technology & Engineering
ISBN : 9781351269742

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Nonlinear Meta-Optics by Costantino De Angelis,Giuseppe Leo,Dragomir N. Neshev Pdf

This book addresses fabrication as well as characterization and modeling of semiconductor nanostructures in the optical regime, with a focus on nonlinear effects. The visible range as well as near and far infrared spectral region will be considered with a view to different envisaged applications. The book covers the current key challenges of the research in the area, including: exploiting new material platforms, fully extending the device operation into the nonlinear regime, adding re-configurability to the envisaged devices and proposing new modeling tools to help in conceiving new functionalities. • Explores several topics in the field of semiconductor nonlinear nanophotonics, including fabrication, characterization and modeling of semiconductor nanostructures in the optical regime, with a focus on nonlinear effects • Describes the research challenges in the field of optical metasurfaces in the nonlinear regime • Reviews the use and achievements of all-dielectric nanoantennas for strengthening the nonlinear optical response • Describes both theoretical and experimental aspects of photonic devices based on semiconductor optical nanoantennas and metasurfaces • Gathers contributions from several leading groups in this research field to provide a thorough and complete overview of the current state of the art in the field of semiconductor nonlinear nanophotonics Costantino De Angelis has been full professor of electromagnetic fields at the University of Brescia since 1998. He is an OSA Fellow and has been responsible for several university research contracts in the last 20 years within Europe, the United States, and Italy. His technical interests are in optical antennas and nanophotonics. He is the author of over 150 peer-reviewed scientific journal articles. Giuseppe Leo has been a full professor in physics at Paris Diderot University since 2004, and in charge of the nonlinear devices group of MPQ Laboratory since 2006. His research areas include nonlinear optics, micro- and nano-photonics, and optoelectronics, with a focus on AlGaAs platform. He has coordinated several research programs and coauthored 100 peer-reviewed journal articles, 200 conference papers, 10 book chapters and also has four patents. Dragomir Neshev is a professor in physics and the leader of the experimental photonics group in the Nonlinear Physics Centre at Australian National University (ANU). His activities span over several branches of optics, including nonlinear periodic structures, singular optics, plasmonics, and photonic metamaterials. He has coauthored 200 publications in international peer-reviewed scientific journals.

Author : Anonim
Publisher : Unknown
Page : 548 pages
File Size : 41,8 Mb
Release : 2006
Category : Optics
ISBN : UOM:39015060964312

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Optics Letters by Anonim Pdf

Author : Abdolkarim Afroozeh, Reza Mosalanezhad, Seyed Ebrahim Pourmand, Alireza Zeinalinezhad
Publisher : American Academic Press
Page : 116 pages
File Size : 49,6 Mb
Release : 2015-04-02
Category : Science
ISBN : 9781631817281

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WIRELESS TERAHERTZ GENERATION USING OPTICAL WAVEGUIDES by Abdolkarim Afroozeh, Reza Mosalanezhad, Seyed Ebrahim Pourmand, Alireza Zeinalinezhad Pdf

Terahertz technology is increasingly becoming an important part of communication systems such as fiber optic communication, RoF (radio over fiber) and wireless systems. The terahertz carrier wave can be generated by quantum transitions of light. In this study, terahertz wave will be generated using a micro ring resonator (MRR) for wide range of wavelengths in medical and RoF. THz radiation has also been used to differentiate tissues based on the abilities. The spectral information from THz pulses has been used to distinguish different types of soft tissues, such as muscle, fat, and kidney tissues.