Download or read book Germanium based Metal semiconductor metal Photodetectors for 1 550 mu m Optical Communication Wavelength written by Salia Agha-Mirbaha and published by . This book was released on 2009 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book MSM metal semiconductor metal photo detector using black silicon germanium SiGe for extended wavelength near infrared detection written by Fred Semendy and published by . This book was released on 2012 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Infrared and Terahertz Detectors Third Edition written by Antoni Rogalski and published by CRC Press. This book was released on 2019-01-10 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of Infrared and Terahertz Detectors provides a comprehensive overview of infrared and terahertz detector technology, from fundamental science to materials and fabrication techniques. It contains a complete overhaul of the contents including several new chapters and a new section on terahertz detectors and systems. It includes a new tutorial introduction to technical aspects that are fundamental for basic understanding. The other dedicated sections focus on thermal detectors, photon detectors, and focal plane arrays.
Download or read book Metal semiconductor metal Photodetectors for Optoelectric Receiver Applications written by Jong-Wook Seo and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: It has been found that the barrier height lowering observed in reverse-biased Schottky junction is due mainly to the change in electrical potential across the interfacial layer at the metal-semiconductor contact. The voltage dependence of barrier height is described, and excellent agreement with experimental data is shown. The surface state density and interfacial layer thickness of a (Ti/Au) /n-InAlAs Schottky junction are estimated from its I-V characteristics. The expressions of the barrier heights of junctions in a metal-semiconductor-metal photodiode (MSMPD) are derived, and excellent agreement with experiment is shown. The adjustment of barrier height and dark current by annealing is investigated based on the theory. The merit of transparent electrodes for MSMPD in an optoelectronic-integrated-circuit (OEIC) is described, and it is shown that the signal-to-noise-ratio (SNR) of a receiver can be improved by the employment of transparent electrodes. The design, fabrication, and characterization of MSMPDs for long- $(lambda = 1.3 mu$m) and short-wavelength $(lambda = 0.85 mu$m) applications are presented in detail. The deposition by RF magnetron sputtering and etching by reactive-ion-etching (RIE) of ITO film are described. It has been found that H$sb2$ incorporation in an Ar plasma during ITO deposition improves the optical transmittance of the film at $lambda = 1.3 mu$m. Responsivity was doubled by ITO electrodes and an anti-reflection (AR) coating. Bandwidths (3-dB) of 22 GHz and 16.6 GHz were obtained for long- and short-wavelength MSMPD, respectively. A 3-dB bandwidth of 6 GHz was obtained for both long-and short-wavelength ITO-MSMPDs. It is shown that the wide band-gap barrier enhancement layer reduces optical responsivity by capturing carriers at the heterointerface. The effects of surface and surface passivation on MSMPD performance are studied. The characterization of OEIC receiver with a transimpedance amplifier is described.
Download or read book High performance Metal semiconductor metal Photodetectors and Optical Receiver for Optical Communication written by Junghwan Kim and published by . This book was released on 2001 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metal semiconductor metal Infrared Photodetectors Based on Germanium written by 林哲勝 and published by . This book was released on 2010 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High performance Germanium Photodetectors on Silicon Reflecting Substrates for Long haul Optical Communications written by Olufemi Isiade Dosunmu and published by . This book was released on 2005 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: In this work we have designed and fabricated resonant cavity enhanced (RCE) germanium-on-silicon (Ge-on-Si) photodetectors, operating around the 1550 nm wavelength for applications in long-haul communications. Without sacrificing bandwidth, the spectral response of the Ge photodetector is enhanced by fabricating the Ge detector within a Fabry-Perot cavity, where the Ge active region is grown atop one or two-period silicon-on-insulator (SOI) substrates designed for maximum reflectivity (>80%) in the 1300 nm-1600 nm wavelength range. The responsivity of these Ge/SOI RCE photodetectors around 1550 nm is further enhanced by the increased absorption coefficient due to the tensile strain-induced bandgap narrowing effect within the Ge film. Detector bandwidths approaching 13 GHz and quantum efficiencies of nearly 60% have been measured around 1550 nm, which demonstrates the compatibility of these Ge/SOI photodetectors with 10 Gb/s data communication systems. In addition, the measured full-width at half-maximum (FWHM) of the spectral resonant peak is approximately 50 nm, encompassing the entire C-band wavelength range (1528 nm-1565 nm) used in long-haul optical communications, making these high-speed Ge detectors ideal for integration with WDM-based telecommunication systems. To the author's knowledge, these detectors are the fastest, most efficient Ge photodetectors fabricated directly on Si and optimized for 1550 nm operation.
Download or read book Germanium Photodetectors on Amorphous Substrates for Electronic photonic Integration written by Brian Sung-Il Pearson and published by . This book was released on 2016 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silicon photonics has emerged as a leading technology to overcome the bandwidth and energy efficiency bottlenecks of standard metal interconnects. Integration of photonics in the back-end-of-line (BEOL) of a standard CMOS process enables the advantages of optical interconnects while benefiting from the low cost of monolithic integration. However, processing in the BEOL requires device fabrication on amorphous substrates, and constrains processing to 450C. In this thesis, a germanium photodetector is fabricated while adhering to these processing constraints in order to demonstrate a proof of concept for BEOL integration. In order to obtain high quality active material, crystalline Ge was grown on Si0 2 by implementing selective deposition in geometrically confined channels. The emerging Ge grains were coalesced to fill a lithographically defined trench, forming the active area of a photodetector. The Ge was measured to have a significant tensile strain of 0.5 %, which was caused by thermal expansion mismatch with the substrate, and concentrated by small voids from imperfect coalescence. The associated resolved shear stress was determined to be below the critical resolved shear stress, verifying that dislocation generation does not occur in this material. The strain was shown to increase the absorption of Ge at long wavelengths, allowing for implementation along the entire telecom window. A Schottky barrier to p-type Ge was developed by the addition of a 1 nm tunneling A120 3 layer between an Al/Ge metal contact. This successfully de-pinned the Fermi level, creating a barrier height of 0.46 eV. The Schottky contacts enabled the fabrication of metal-semiconductor-metal (MSM) photodetectors on standard epitaxial Ge with state-of-the-art dark current densities of 2.1 x 10-2 A cm-2. Gain was observed in these photodetectors, with internal quantum efficiencies (IQE) of 405 %. MSM detectors were also made using Ge on Si0 2, exhibiting an IQE of 370 %. This is the first demonstration of IQE 100% in a Ge MSM or pin photodetector and proves the feasibility of making high performance active photonic devices while adhering to BEOL processing constraints.
Download or read book Application of Metal Semiconductor Metal Photodetector in High Speed Optical Communication Systems written by Farzaneh Fadakar Masouleh and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Application of Metal-Semiconductor-Metal Photodetector in High-Speed Optical Communication Systems.
Download or read book Optical Fiber Communications written by Senior John M. and published by Pearson Education India. This book was released on 2009 with total page 1132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Semiconductor Devices for Optical Communication written by H. Kressel and published by Springer Science & Business Media. This book was released on 2006-01-21 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions by numerous experts
Download or read book Optoelectronic Integrated Circuit Design and Device Modeling written by Jianjun Gao and published by John Wiley & Sons. This book was released on 2011-09-19 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Optoelectronic Integrated Circuit Design and Device Modeling, Professor Jianjun Gao introduces the fundamentals and modeling techniques of optoelectronic devices used in high-speed optical transmission systems. Gao covers electronic circuit elements such as FET, HBT, MOSFET, as well as design techniques for advanced optical transmitter and receiver front-end circuits. The book includes an overview of optical communication systems and computer-aided optoelectronic IC design before going over the basic concept of laser diodes. This is followed by modeling and parameter extraction techniques of lasers and photodiodes. Gao covers high-speed electronic semiconductor devices, optical transmitter design, and optical receiver design in the final three chapters. Addresses a gap within the rapidly growing area of transmitter and receiver modeling in OEICs Explains diode physics before device modeling, helping readers understand their equivalent circuit models Provides comprehensive explanations for E/O and O/E conversions done with laser and photodiodes Covers an extensive range of devices for high-speed applications Accessible for students new to microwaves Presentation slides available for instructor use This book is primarily aimed at practicing engineers, researchers, and post-graduates in the areas of RF, microwaves, IC design, photonics and lasers, and solid state devices. The book is also a strong supplement for senior undergraduates taking courses in RF and microwaves. Lecture materials for instructors available at www.wiley.com/go/gao
Download or read book WDM Technologies Passive Optical Components written by Achyut K. Dutta and published by Academic Press. This book was released on 2003-06-04 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: The communications industry is at the onset of new expansion of WDM technology necessary to meet the new demand for bandwidth. This is the second of a four reference books that will cover this technology comprehensively with all of the major topics covered by a separate volumes - i.e. active components, passive components, systems and networks. This book is the first which covers all key passive optical components required for current and next generation optical communication systems. World-renowned authors, who are pioneers in their research area, have written the chapters in their area of expertise. The book highlights not only the principle of operation and characteristics of the passive optical components, but also provides an in-depth account of the state-of-the-art system applications.- Helps the reader to choose the right device for a given system application.- Provides the reader with insight and understanding for key passive optical components frequently being / to be used in the optical communication systems, essential building blocks of today's/next generation fiber optic networks.- Allows engineers working in different optical communication areas(i.e. from system to component), to understand the principle and mechanics of each key component they deal with for optical system design.- Covers Planar lightwave circuit (PLC) based router, different optical switches technologies (based on MEMS, thermo-optic, and electro-optic) and different optical amplifier technologies (based on semiconductor optical amplifier, EDFA ,and raman amplifier). - Highlights the operating principle of each component, system applications, and also future opportunities.
Download or read book Silicon Photonics II written by David J. Lockwood and published by Springer Science & Business Media. This book was released on 2010-10-13 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is volume II of a series of books on silicon photonics. It gives a fascinating picture of the state-of-the-art in silicon photonics from a component perspective. It presents a perspective on what can be expected in the near future. It is formed from a selected number of reviews authored by world leaders in the field, and is written from both academic and industrial viewpoints. An in-depth discussion of the route towards fully integrated silicon photonics is presented. This book will be useful not only to physicists, chemists, materials scientists, and engineers but also to graduate students who are interested in the fields of micro- and nanophotonics and optoelectronics.
Download or read book Fiber Optics Engineering written by Mohammad Azadeh and published by Springer Science & Business Media. This book was released on 2009-08-05 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Within the past few decades, information technologies have been evolving at a tremendous rate, causing profound changes to our world and our ways of life. In particular, fiber optics has been playing an increasingly crucial role within the telecommunication revolution. Not only most long-distance links are fiber based, but optical fibers are increasingly approaching the individual end users, providing wide bandwidth links to support all kinds of data-intensive applications such as video, voice, and data services. As an engineering discipline, fiber optics is both fascinating and challenging. Fiber optics is an area that incorporates elements from a wide range of techno- gies including optics, microelectronics, quantum electronics, semiconductors, and networking. As a result of rapid changes in almost all of these areas, fiber optics is a fast evolving field. Therefore, the need for up-to-date texts that address this growing field from an interdisciplinary perspective persists. This book presents an overview of fiber optics from a practical, engineering perspective. Therefore, in addition to topics such as lasers, detectors, and optical fibers, several topics related to electronic circuits that generate, detect, and process the optical signals are covered. In other words, this book attempts to present fiber optics not so much in terms of a field of “optics” but more from the perspective of an engineering field within “optoelectronics.
Download or read book Semiconductor Detector Systems written by Helmuth Spieler and published by OUP Oxford. This book was released on 2005-08-25 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconductor sensors patterned at the micron scale combined with custom-designed integrated circuits have revolutionized semiconductor radiation detector systems. Designs covering many square meters with millions of signal channels are now commonplace in high-energy physics and the technology is finding its way into many other fields, ranging from astrophysics to experiments at synchrotron light sources and medical imaging. This book is the first to present a comprehensive discussion of the many facets of highly integrated semiconductor detector systems, covering sensors, signal processing, transistors and circuits, low-noise electronics, and radiation effects. The diversity of design approaches is illustrated in a chapter describing systems in high-energy physics, astronomy, and astrophysics. Finally a chapter "Why things don't work" discusses common pitfalls. Profusely illustrated, this book provides a unique reference in a key area of modern science.
Download or read book Photonics and Lasers written by Richard S. Quimby and published by John Wiley & Sons. This book was released on 2006-04-14 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to photonics and lasers that does not rely on complex mathematics This book evolved from a series of courses developed by the author and taught in the areas of lasers and photonics. This thoroughly classroom-tested work fills a unique need for students, instructors, and industry professionals in search of an introductory-level book that covers a wide range of topics in these areas. Comparable books tend to be aimed either too high or too low, or they cover only a portion of the topics that are needed for a comprehensive treatment. Photonics and Lasers is divided into four parts: * Propagation of Light * Generation and Detection of Light * Laser Light * Light-Based Communication The author has ensured that complex mathematics does not become an obstacle to understanding key physical concepts. Physical arguments and explanations are clearly set forth while, at the same time, sufficient mathematical detail is provided for a quantitative understanding. As an additional aid to readers who are learning to think symbolically, some equations are expressed in words as well as symbols. Problem sets are provided throughout the book for readers to test their knowledge and grasp of key concepts. A solutions manual is also available for instructors. Finally, the detailed bibliography leads readers to in-depth explorations of particular topics. The book's topics, lasers and photonics, are often treated separately in other texts; however, the author skillfully demonstrates their natural synergy. Because of the combined coverage, this text can be used for a two-semester course or a one-semester course emphasizing either lasers or photonics. This is a perfect introductory textbook for both undergraduate and graduate students, additionally serving as a practical reference for engineers in telecommunications, optics, and laser electronics.
