Download or read book InGaAsP InP Based 1 3 1 55 Micron Vertical Cavity Surface Emitting Lasers for Wavelength Division Multiplexed High Speed Distributed Computing Phase 1 written by M. K. Kilcoyne and published by . This book was released on 1993 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wavelength division multiplexed communication systems are becoming increasingly attractive for maximizing the data capacity of long range fiber optic links. Currently, distributed feedback (DFB) semiconductor lasers must be used due to the system requirements of precise single frequency lasers. The high cost of DFB lasers and associated control circuitry has made these systems too expensive for wide acceptance. In this research the possibility of using wavelength division multiplexed arrays of single 1.55 micron InGaAsP vertical cavity surface emitting lasers has been analyzed. The laser arrays have the potential to dramatically reduce the costs of sources compared with distributed feedback laser arrays. This research has focused on the technologies of wafer fusion, step etching and current constriction to develop designs that meet wavelength division multiplexed system requirements. Experiments and modeling has shown that 4x4 arrays of vertical cavity lasers spaced 2nm apart in wavelength are a realistic goal. The sixteen lasers would each be capable of launching single mode powers above lmw into a fiber at drive currents below 8mA. Vertical cavity lasers, Distributed computing, Wavelength division multiplexing, InGaAsP lasers.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1997 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1994-02 with total page 1586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selectively Oxidized Patterned InP based Vertical Cavity Surface Emitting Lasers and VCSEL Arrays written by Herte Gebretsadik and published by . This book was released on 1999 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the development of low loss optical fibers over 25 years ago, optical communications has become the system of choice for worldwide communication networks. Some of the many advantages over previous systems include: large transmission bandwidth, immunity to electromagnetic interference, low transmission loss, low weight, low power consumption, and relatively low cost. As multimedia services including the internet, cable television, high definition television (HDTV), and computer links become indispensable in our daily lives, large amounts of data must be transmitted through the information highway. This poses a serious challenge on the current communication network.
Download or read book Long Wavelength InGaAsP InP Surface Emitting Laser for Optoelectronic Integrated Circuits written by Jung-Ching Ho and published by . This book was released on 1991 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vertical Cavity Surface Emitting Lasers written by Julian Cheng and published by CRC Press. This book was released on 2000-07-06 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since first coming into existence in the early 90s, the vertical-cavity surface-emitting laser (VCSEL) has made several quantum leaps in performance. The performance of VCSELs now exceeds that of edge-emitting lasers in many respects, and offers a superior optical beam and much easier monolithic integrability. As the VCSEL technology improves furth
Download or read book Current Trends In Vertical Cavity Surface Emitting Lasers written by Tien Pei Lee and published by World Scientific. This book was released on 1995-07-26 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: With significant progress made in recent years, vertical cavity surface emitting lasers (VCSELs) have emerged as potential lightwave sources with a variety of applications, including high speed optical interconnects, parallel data links, optical recording, 2-D scanning, and optical signal processing. This volume, which contains a collection of articles by outstanding experts on this topic, encompasses a broad discussion of the current trends in the development of VCSELs. Discussions include material growths, structure designs, processing methods, performance analysis, improvement strategies, and future prospects. The collection provides a comprehensive overview that may help newcomers to this field as well as engineers and researchers who are engaged in the research and development of this new exciting device family.
Download or read book Broadly Tunable InGaAsP InP Laser Based on a Vertical Coupler Filter with 57nm Tuning Range written by R. C. Alferness and published by . This book was released on 1992 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt: Broadly tunable semiconductor lasers are important sources for a number of applications, especially wavelength division multiplexed networks and switching systems. Presently, the most developed monolithic tunable lasers, the distributed feedback (DFB) or distributed Bragg reflector (DBR), are limited to an approximately 10nm electrical tuning range. By integrating a grating-assisted vertical coupler as a tunable intracavity filter in a novel active/passive monolithic laser, we have achieved a measured tuning range of 57nm.
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 Vertical Cavity Surface Emitting Lasers written by Terence Edward Sale and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Starting from basic principles, this book provides coverage of the operation and design of Vertical Cavity Surface Emitting Lasers (VCSELs). It includes original experimental work, backed up by calculations and theoretical analysis, and reviews work already done in the field.
Download or read book InP lattice matched Long wavelength Vertical cavity Surface emitting Lasers for Optical Fiber Communications written by Shigeru Nakagawa and published by . This book was released on 2001 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Vertical Cavity Surface Emitting Lasers written by Connie J. Chang-Hasnain and published by . This book was released on 1997 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Novel Epitaxial Growth Technologies for Long Wavelength 1 1 1 5 Micron Vertical Cavity Surface Emitting Lasers and Optical Switches for High Performance Optical Information Networks written by and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this research program is to develop novel techniques for the epitaxial growth and fabrication of vertical-cavity surface-emitting laser structures with lasing wavelengths in the 1.1-1.5 micron regime. Special emphasis will be on the realization of 1300 nm VCSELs and monolithic VCSEL arrays that are useful for the parallel optical data links that will interconnect future computer networks, whose nodes may be distributed across a wide range of distances and are interconnected by optical fibers. The 1300 nm VCSELs will provide improved fiber transmission performance as well as a more unified technology platform for the different levels of the interconnection heirarchy. One goal is to design and demonstrate a practical 1300 nm VCSEL structure that can be grown by a single epitaxial growth on a convention, high quality GaAs substrate. These structures will use InGaAsN quantum wells, as well as GaAs/AlAs distributed Bragg reflector (DBR) mirrors with a large index difference, which reduces the total thickness to a tractable level that makes a single-growth approach possible. In this program, we will develop an optimum device design for the fabrication of these VCSEL structures, and we will integrate them into monolithic arrays. We will evaluate the performance of the VCSELs in parallel optical links as well as in VCSEL-based optical switching networks.
Download or read book Topics in Guided wave Optics written by Guoliang Chen and published by . This book was released on 1985 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Springer Handbook of Optical Networks written by Biswanath Mukherjee and published by Springer Nature. This book was released on 2020-10-15 with total page 1169 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook is an authoritative, comprehensive reference on optical networks, the backbone of today’s communication and information society. The book reviews the many underlying technologies that enable the global optical communications infrastructure, but also explains current research trends targeted towards continued capacity scaling and enhanced networking flexibility in support of an unabated traffic growth fueled by ever-emerging new applications. The book is divided into four parts: Optical Subsystems for Transmission and Switching, Core Networks, Datacenter and Super-Computer Networking, and Optical Access and Wireless Networks. Each chapter is written by world-renown experts that represent academia, industry, and international government and regulatory agencies. Every chapter provides a complete picture of its field, from entry-level information to a snapshot of the respective state-of-the-art technologies to emerging research trends, providing something useful for the novice who wants to get familiar with the field to the expert who wants to get a concise view of future trends.
Download or read book Vertical Cavity Surface Emitting Lasers XX written by Kent D. Choquette and published by . This book was released on 2016-08 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
