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ISBN:
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Languages : en
Pages : 15
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Book Description
The authors report data on GaAsSb single quantum well lasers grown on GaAs substrates. Room temperature pulsed emission at 1.275 [mu]m in a 1,250 [mu]m-long device has been observed. Minimum threshold current densities of 535 A/cm2 were measured in 2000 [mu]m long lasers. The authors also measured internal losses of 2--5 cm−1, internal quantum efficiencies of 30-38% and characteristic temperature T0 of 67--77 C. From these parameters a gain constant G0 of 1,660 cm−1 and a transparency current density J{sub tr} of 134 A/cm2 were calculated. The results indicate the potential for fabricating 1.3 [mu]m VCSELs from these materials.
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 15
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Book Description
The authors report data on GaAsSb single quantum well lasers grown on GaAs substrates. Room temperature pulsed emission at 1.275 [mu]m in a 1,250 [mu]m-long device has been observed. Minimum threshold current densities of 535 A/cm2 were measured in 2000 [mu]m long lasers. The authors also measured internal losses of 2--5 cm−1, internal quantum efficiencies of 30-38% and characteristic temperature T0 of 67--77 C. From these parameters a gain constant G0 of 1,660 cm−1 and a transparency current density J{sub tr} of 134 A/cm2 were calculated. The results indicate the potential for fabricating 1.3 [mu]m VCSELs from these materials.
Author: Prasanta Kumar Basu
Publisher: CRC Press
ISBN: 1466561920
Category : Science
Languages : en
Pages : 551
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Book Description
Developed from the authors' classroom-tested material, Semiconductor Laser Theory takes a semiclassical approach to teaching the principles, structure, and applications of semiconductor lasers. Designed for graduate students in physics, electrical engineering, and materials science, the text covers many recent developments, including diode lasers u
Author: Anthony Krier
Publisher: Springer
ISBN: 1846282098
Category : Science
Languages : en
Pages : 756
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Book Description
Optoelectronic devices operating in the mid-infrared wavelength range offer applications in a variety of areas from environmental gas monitoring around oil rigs to the detection of narcotics. They could also be used for free-space optical communications, thermal imaging applications and the development of "homeland security" measures. Mid-infrared Semiconductor Optoelectronics is an overview of the current status and technological development in this rapidly emerging area; the basic physics, some of the problems facing the design engineer and a comparison of possible solutions are laid out; the different lasers used as sources for mid-infrared technology are considered; recent work in detectors is reviewed; the last part of the book is concerned with applications. With a world-wide authorship of experts working in many mid-infrared-related fields this book will be an invaluable reference for researchers and graduate students drawn from physics, electronic and electrical engineering and materials science.
Author: Michael Jetter
Publisher: John Wiley & Sons
ISBN: 3527807977
Category : Technology & Engineering
Languages : en
Pages : 584
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Book Description
Vertical External Cavity Surface Emitting Lasers Provides comprehensive coverage of the advancement of vertical-external-cavity surface-emitting lasers Vertical-external-cavity surface-emitting lasers (VECSELs) emit coherent light from the infrared to the visible spectral range with high power output. Recent years have seen new device developments – such as the mode-locked integrated (MIXSEL) and the membrane external-cavity surface emitting laser (MECSEL) – expand the application of VECSELs to include laser cooling, spectroscopy, telecommunications, biophotonics, and laser-based displays and projectors. In Vertical External Cavity Surface Emitting Lasers: VECSEL Technology and Applications, leading international research groups provide a comprehensive, fully up-to-date account of all fundamental and technological aspects of vertical external cavity surface emitting lasers. This unique book reviews the physics and technology of optically-pumped disk lasers and discusses the latest developments of VECSEL devices in different wavelength ranges. Topics include OP-VECSEL physics, continuous wave (CW) lasers, frequency doubling, carrier dynamics in SESAMs, and characterization of nonlinear lensing in VECSEL gain samples. This authoritative volume: Summarizes new concepts of DBR-free and MECSEL lasers for the first time Covers the mode-locking concept and its application Provides an overview of the emerging concept of self-mode locking Describes the development of next-generation OPS laser products Vertical External Cavity Surface Emitting Lasers: VECSEL Technology and Applications is an invaluable resource for laser specialists, semiconductor physicists, optical industry professionals, spectroscopists, telecommunications engineers and industrial physicists.
Author: Achyut K. Dutta
Publisher: Academic Press
ISBN: 0080543766
Category : Science
Languages : en
Pages : 551
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Book Description
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.
Author:
Publisher:
ISBN:
Category : Electrooptics
Languages : en
Pages : 764
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Book Description
Author: Irina T. Sorokina
Publisher: Springer Science & Business Media
ISBN: 3540006214
Category : Science
Languages : en
Pages : 600
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Book Description
The book describes the most advanced techniques for generating coherent light in the mid-infrared region of the spectrum. These techniques represent diverse areas of photonics and include heterojunction semiconductor lasers, quantum cascade lasers, tunable crystalline lasers, fiber lasers, Raman lasers, and optical parametric laser sources. Offering authoritative reviews by internationally recognized experts, the book provides a wealth of information on the essential principles and methods of the generation of coherent mid-infrared light and on some of its applications. The instructive nature of the book makes it an excellent text for physicists and practicing engineers who want to use mid-infrared laser sources in spectroscopy, medicine, remote sensing and other fields, and for researchers in various disciplines requiring a broad introduction to the subject.
Author: Akhtar Kalam
Publisher: Springer Nature
ISBN: 9811502145
Category : Technology & Engineering
Languages : en
Pages : 1011
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Book Description
The book compiles the research works related to smart solutions concept in context to smart energy systems, maintaining electrical grid discipline and resiliency, computational collective intelligence consisted of interaction between smart devices, smart environments and smart interactions, as well as information technology support for such areas. It includes high-quality papers presented in the International Conference on Intelligent Computing Techniques for Smart Energy Systems organized by Manipal University Jaipur. This book will motivate scholars to work in these areas. The book also prophesies their approach to be used for the business and the humanitarian technology development as research proposal to various government organizations for funding approval.
Author: Norbert Grote
Publisher: Springer Science & Business Media
ISBN: 9783540669777
Category : Technology & Engineering
Languages : en
Pages : 496
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Book Description
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.
Author: Markus-Christian Amann
Publisher: Artech House Optoelectronics L
ISBN: 9780890069639
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
This comprehensive reference discusses the underlying physics, operational principles, and performance and applications of tunable laser diodes. The book is supplemented with practical examples and helpful notations.
