Download or read book Photonic Integration Transmitter and Receiver Components for RF Links with Gain written by and published by . This book was released on 2005 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical links have many advantages over microwave links for a wide range of applications, including phased array radars, antennas, remoting, and microwave signal processing. Some major limitations in the deployment of optical links has been the large drive voltages, link loss, and limited linearity. The goal of the UCSB program was the demonstration of novel device concepts, innovative integration techniques, and interesting link concepts to address these issues. Significant contributions have been made in all these areas, including very low voltage traveling wave modulators exceeding the program goal of 0.5 V, electroabsorption modulators integrated with tunable lasers, and novel links to simultaneously reduce the second and third order nonlinearity. The report provides details on devices, circuits, links, and their performance.
Download or read book Photonic Integrated Systems written by Louay A. Eldada and published by SPIE-International Society for Optical Engineering. This book was released on 2003 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultra compact Integrated Coherent Receiver for High Linearity RF Photonic Links written by Uppiliappan Krishnamachari and published by . This book was released on 2012 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radio frequency (RF) photonic links employing phase modulation can exhibit high dynamic range provided the received RF signal can be linearly demodulated. The linearity of conventional interferometer based coherent receivers is limited by their sinusoidal response. A balanced receiver with negative feedback to a reference tracking modulator is developed in this work. In order to achieve high linearity, the tracking modulator is used to reduce the net phase swing across the demodulator such that the interferometer response is restricted to its linear regime without penalty to the signal to noise ratio (SNR). In order to achieve linear phase tracking at high frequencies, high loop gain and loop bandwidth are required. This means the physical delay of the feedback loop must be suciently short enough to prevent loop instability at higher frequencies. Monolithic integration of the receiver components is thus used to realize a compact receiver architecture. In this work, a monolithically integrated coherent receiver with negative feedback to suppress the nonlinearity arising from phase modulation has been successfully demonstrated. The photonic integrated circuit (PIC) consists of an ultracompact frustrated total internal reflection (FTIR) trench coupler integrated with multiple quantum well (MQW) reference phase modulators and a balanced unitravelling carrier (UTC) photodetector pair. The trench coupler contributes less than 1 micron to the optical path length, and is shown to exhibit 50:50 splitting. The compactness allows a device geometry that enables flip chip hybrid integration of the PIC with an electronic integrated circuit (EIC) that contains the transconductanceamplifier and filter for the feedback loop. Use of the ultra-compact trench and the flip chip integration reduces the loop delay to 10 ps. The resultant 3-dB bandwidth of the receiver was measured to be 1.5 GHz. The shot-noise limited SFDR at 300 MHz is 123 dB Hz2/3.
Download or read book Optoelectronic Interconnects Integrated Circuits and Packaging written by Louay A. Eldada and published by SPIE-International Society for Optical Engineering. This book was released on 2002 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coherent Receiver for High Linearity Radio Frequency Photonic Links written by Krishnamachari Uppili and published by LAP Lambert Academic Publishing. This book was released on 2014-08-04 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radio frequency photonic links employing phase modulation can exhibit high dynamic range provided the received RF signal can be linearly demodulated. The linearity of conventional interferometer based coherent receivers is limited by their sinusoidal response. A balanced receiver with negative feedback to a reference tracking modulator is presented in this text. In order to achieve high linearity, the tracking modulator is used to reduce the net phase swing across the demodulator such that the interferometer response is restricted to its linear regime without penalty to the signal to noise ratio. In order to achieve linear phase tracking at high frequencies, high loop gain and loop bandwidth are required. This means the physical delay of the feedback loop must be sufficiently short enough to prevent loop instability at higher frequencies. Novel techniques in monolithic integration of the receiver components is thus utilized to achieve an ultra-compact receiver architecture.
Download or read book Advanced Components for RF Photonic Links written by Shilei Jin and published by . This book was released on 2015 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book RF Photonic Technology in Optical Fiber Links written by William S. C. Chang and published by Cambridge University Press. This book was released on 2007-05-14 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: In many applications, radio frequency (RF) signals need to be transmitted and processed without being digitalized. Optical fiber provides a transmission medium in which RF modulated optical carriers can be transmitted and distributed with very low loss, making it more efficient and less costly than conventional electronic systems. This volume presents a review of RF photonic components, transmission systems, and signal processing examples in optical fibers from leading academic, government, and industry scientists working in this field. It also introduces the reader to various related technologies such as direct modulation of laser sources, external modulation techniques, and detectors. The text is aimed at engineers and scientists engaged in the research and development of optical fibers and analog RF applications. With an emphasis on design, performance and practical application, this book will be of particular interest to those developing systems based on this technology.
Download or read book Active Array Antennas for High Resolution Microwave Imaging Radar written by Jiaguo Lu and published by Springer Nature. This book was released on 2023-05-04 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the application of active array antennas in high-resolution microwave imaging radar systems. It introduces the basic principles, analytical methods, and performance parameters of active array antennas to achieve low profile, high efficiency, and lightweight. The book systematically elaborates the architecture, analysis, and engineering practice to achieve wideband, multi-band, multi-polarization, and common aperture in active array antennas. It explores hotspot technologies of digital array antennas, microwave photonic array antennas, and active packaging antennas. By presenting over 300 illustrations and diagrams, including schematic diagrams, block diagrams, relation diagrams, and breakdown drawings, the book enables a thorough understanding of the antenna array microsystem as the advanced phase of active array antennas and the direction of future R&D. The book is a good reference source for researchers and engineers interested in the engineering and implementation of microwave imaging radar systems and antenna technology.
Download or read book Optical Filter Design and Analysis written by Christi K. Madsen and published by Wiley-Interscience. This book was released on 1999-06-15 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Unique, Cutting-Edge Approach to Optical Filter Design With more and more information being transmitted over fiber-optic lines, optical filtering has become crucial to the advanced functionality of today's communications networks. Helping researchers and engineers keep pace with this rapidly evolving technology, this book presents digital processing techniques for optical filter design. This higher-level approach focuses on filter characteristics and enables readers to quickly calculate the filter response as well as tackle larger and more complex filters. The authors incorporate numerous theoretical and experimental results from the literature and discuss applications to a variety of systems-including the new wavelength division multiplexing (WDM) technology, which is fast becoming the preferred method for system upgrade and expansion. Special features of this book include: * The theory underlying various architectures that can approximate any filter function * Filter design techniques applicable to a broad range of materials systems-from silica to fiber to microelectromechanical (MEM) systems * Design examples relevant to filters for WDM systems and planar waveguide devices * 250 figures as well as problem sets for use in graduate-level studies
Download or read book High Speed Devices and Circuits with THz Applications written by Jung Han Choi and published by CRC Press. This book was released on 2017-09-19 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presenting the cutting-edge results of new device developments and circuit implementations, High-Speed Devices and Circuits with THz Applications covers the recent advancements of nano devices for terahertz (THz) applications and the latest high-speed data rate connectivity technologies from system design to integrated circuit (IC) design, providing relevant standard activities and technical specifications. Featuring the contributions of leading experts from industry and academia, this pivotal work: Discusses THz sensing and imaging devices based on nano devices and materials Describes silicon on insulator (SOI) multigate nanowire field-effect transistors (FETs) Explains the theory underpinning nanoscale nanowire metal-oxide-semiconductor field-effect transistors (MOSFETs), simulation methods, and their results Explores the physics of the silicon-germanium (SiGe) heterojunction bipolar transistor (HBT), as well as commercially available SiGe HBT devices and their applications Details aspects of THz IC design using standard silicon (Si) complementary metal-oxide-semiconductor (CMOS) devices, including experimental setups for measurements, detection methods, and more An essential text for the future of high-frequency engineering, High-Speed Devices and Circuits with THz Applications offers valuable insight into emerging technologies and product possibilities that are attractive in terms of mass production and compatibility with current manufacturing facilities.
Download or read book Optoelectronic Integrated Circuits written by and published by . This book was released on 2001 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optical and Wireless Convergence for 5G Networks written by Abdelgader M. Abdalla and published by John Wiley & Sons. This book was released on 2019-08-02 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mobile market has experienced unprecedented growth over the last few decades. Consumer trends have shifted towards mobile internet services supported by 3G and 4G networks worldwide. Inherent to existing networks are problems such as lack of spectrum, high energy consumption, and inter-cell interference. These limitations have led to the emergence of 5G technology. It is clear that any 5G system will integrate optical communications, which is already a mainstay of wide area networks. Using an optical core to route 5G data raises significant questions of how wireless and optical can coexist in synergy to provide smooth, end-to-end communication pathways. Optical and Wireless Convergence for 5G Networks explores new emerging technologies, concepts, and approaches for seamlessly integrating optical-wireless for 5G and beyond. Considering both fronthaul and backhaul perspectives, this timely book provides insights on managing an ecosystem of mixed and multiple access network communications focused on optical-wireless convergence. Topics include Fiber–Wireless (FiWi), Hybrid Fiber-Wireless (HFW), Visible Light Communication (VLC), 5G optical sensing technologies, approaches to real-time IoT applications, Tactile Internet, Fog Computing (FC), Network Functions Virtualization (NFV), Software-Defined Networking (SDN), and many others. This book aims to provide an inclusive survey of 5G optical-wireless requirements, architecture developments, and technological solutions.
Download or read book An Introduction to Lasers Theory and Applications written by M N Avadhanulu and published by S. Chand Publishing. This book was released on 2001 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Basic Theory | Types Of Lasers | Laser Beam Characteristics | Techniues For Control Of Laser Output| Applications Of Lasers
Download or read book NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration Scientific and Technical Information Division and published by . This book was released on 1970 with total page 966 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Papers on Photonic Control Systems for Phased Array Antennas written by Nabeel A. Riza and published by SPIE-International Society for Optical Engineering. This book was released on 1997 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics in this volume include: antenna beamforming using optical processor; novel optical techniques for phased-array processing; and optically-controlled phased array radar receiver using SLM switched real time delays.
Download or read book IEEE International Symposium on Phased Array Systems and Technology written by and published by . This book was released on 2000 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fibre Optic Communication Devices written by Norbert Grote and published by Springer Science & Business Media. This book was released on 2001-01-26 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optoelectronic devices and fibre optics are the basis of cutting-edge communication systems. This monograph deals with the various components of these systems, including lasers, amplifiers, modulators, converters, filters, sensors, and more.
