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Category :
Languages : en
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Author: Frédéric Grillot
Publisher: Editions Universitaires Européennes
ISBN: 9786131521225
Category :
Languages : fr
Pages : 228

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Book Description
Alors que les télécommunications optiques se sont imposées dans les liaisons point à point de très haut débit, leur extension au réseau métropolitain, caractérisé par une grande densité de connexions, est aujourd'hui freinée par le prix élevé des composants. Un des principaux facteurs de coût dans la fabrication des modules optique est lié au besoin de coupler le laser à un isolateur afin de le protéger des réflexions externes. Le but de ce travail a consisté à développer des lasers monomodes DFB (Distributed Feed-Back) faiblement sensibles à la réalimentation optique afin de pouvoir réaliser des transmissions à très haut-débit sans isolateur. Afin de s'affranchir de l'opération de tri, de nouvelles structures DFB à pas variable et fondées sur l'utilisation d'un réseau de Bragg asymétrique ont ensuite été réalisées. Les résultats montrent des performances statiques et dynamiques homogènes sur plaque et au-delà de l'état de l'art. Outre la réduction du prix lié à l'absence d'isolateur et à la suppression de l'opération de tri, les performances obtenues sont particulièrement prometteuses pour le développement des réseaux de télécommunications tout optique.

Author: Takahiro Numai
Publisher: John Wiley & Sons
ISBN: 1118074424
Category : Technology & Engineering
Languages : en
Pages : 408

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In order to develop excellent photonic devices, we have to fully understand the physics behind operations of photonic devices. This book thoroughly teaches the fundamental physics currently applied to the development of photonics devices such as energy bands of semiconductors, optical transitions, optical waveguides, and semiconductor junctions. The book also reviews the characteristics of laser diodes, optical filters, and optical functional devices, which have been developed based on the above physics. These photonic devices have been demonstrated in system applications, and several experimental results are described.

Author: David J. Klotzkin
Publisher:
ISBN: 9783030245023
Category : Electrical engineering
Languages : en
Pages : 0

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This updated, second edition textbook provides a thorough and accessible treatment of semiconductor lasers from a design and engineering perspective. It includes both the physics of devices as well as the engineering, designing and testing of practical lasers. The material is presented clearly with many examples provided. Readers of the book will come to understand the finer aspects of the theory, design, fabrication and test of these devices and have an excellent background for further study of optoelectronics. Provides a multi-faceted approach to explaining the theories behind semiconductor lasers, utilizing mathematical examples, illustrations and written theoretical presentations; Offers a balance of relevant optoelectronic topics, with specific attention given to distributed feedback lasers, growth techniques and waveguide cavity design; Presents modern optical communication formats such as pulse amplitude modulation, phase shift keying and quadrature amplitude modulation; Connects laser and transmitter characteristics with system requirements; Provides a summary of every chapter, worked examples, and problems for readers to solve.

Author: Klaus Petermann
Publisher: Springer Science & Business Media
ISBN: 9400929072
Category : Technology & Engineering
Languages : en
Pages : 327

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Laser diodes represent a key element in the emerging field of opto electronics which includes, for example, optical communication, optical sensors or optical disc systems. For all these applications, information is either transmitted, stored or read out. The performance of these systems depends to a great deal on the performance of the laser diode with regard to its modulation and noise characteristics. Since the modulation and noise characteristics of laser diodes are of vital importance for optoelectronic systems, the need for a book arises that concentrates on this subject. This book thus closes the gap between books on the device physics of semiconductor lasers and books on system design. Complementary to the specific topics concerning modulation and noise, the first part of this book reviews the basic laser characteristics, so that even a reader without detailed knowledge of laser diodes may follow the text. In order to understand the book, the reader should have a basic knowledge of electronics, semiconductor physics and optical communica tions. The work is primarily written for the engineer or scientist working in the field of optoelectronics; however, since the book is self-contained and since it contains a lot of numerical examples, it may serve as a textbook for graduate students. In the field of laser diode modulation and noise a vast amount has been published during recent years. Even though the book contains more than 600 references, only a small part of the existing literature is included.

Author: Hans Zappe
Publisher: Springer Science & Business Media
ISBN: 3662082497
Category : Technology & Engineering
Languages : en
Pages : 349

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Laser Diode Microsystems provides the reader with the basic knowledge and understanding required for using semiconductor laser diodes in optical microsystems and micro-optical electromechanic systems. This tutorial addresses the fundamentals of semiconductor laser operation and design, coupled with an overview of the types of laser diodes suitable for use in Microsystems, along with their distinguishing characteristics. Emphasis is placed on laser diode characterization and measurement as well as the assembly techniques and optical accessories required for incorporation of semiconductor lasers into complex microsystems. Equipped with typical results and calculation examples, this hand-on text helps readers to develop a feel for how to choose a laser diode, characterize it and incorporate it into a microsystem.

Author: D. Sands
Publisher: CRC Press
ISBN: 9781420056990
Category : Science
Languages : en
Pages : 468

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Book Description
The compact size, reliability, and low cost of diode lasers lead to applications throughout modern technology-most importantly in modern optical telecommunication systems. This book presents a comprehensive introduction to the principles and operation of diode lasers. It begins with a review of semiconductor physics and laser fundamentals, before describing the most basic homojunction laser. Later chapters describe more advanced laser types and their applications, including the most recently developed and exotic laser designs. The author's intuitive style, coupled with an extensive set of worked examples and sample problems, make this an outstanding introduction to the subject.

Author: Haiyin Sun
Publisher: Springer Science & Business Media
ISBN: 9400746644
Category : Science
Languages : en
Pages : 83

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Book Description
Many optical design technical books are available for many years which mainly deal with image optics design based on geometric optics and using sequential raytracing technique. Some books slightly touched laser beam manipulation optics design. On the other hand many books on laser diodes have been published that extensively deal with laser diode physics with little touching on laser diode beam manipulations and characterizations. There are some internet resources dealing with laser diode beams. However, these internet resources have not covered enough materials with enough details on laser diode beam manipulations and characterizations. A technical book concentrated on laser diode beam manipulations and characterizations can fit in to the open and provide useful information to laser diode users. Laser Diode Beam Basics, Manipulations and Characterizations is concentrated on the very practical side of the subject, it only discusses the basic physics and mathematics that are necessary for the readers in order to understand the subject. This book is intended to provide a practical guidance and reference to those scientists and engineers who are still new to laser diode applications, and to those undergraduate and graduate students who are studying lasers and optics. Readers are expected to be able to fast and easily find the most practical and useful information about laser diodes in this book without the need of searching through a sea of information.

Author: Dr. H. Ghafouri-Shiraz
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 256

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Distributed Feedback Laser Diodes Principles and Physical Modelling H. Ghafouri-Shiraz B. S. K. Lo University of Birmingham, UK Advances in optical fibre-based communications systems have played a crucial role in the development of the information highway. By offering a single mode oscillation and narrow spectral output, distributed feedback (DFB) semiconductor laser diodes offer an excellent optical light source for fibre-based communication systems. This comprehensive text focuses on the basic working principles of DFB laser diodes and details the development of a new technique for enhanced system performance. Considers the optical waveguiding characteristics and properties of semiconductor materials and the physics of DFB semiconductor lasers. Presents a powerful modelling technique based on the transfer matrix method which can be used to improve the design of laser diodes, optical filters and amplifiers. Examines the effect of the various corrugation shapes on the coupling coefficients and lasing characteristics of DFB laser diodes. Technical advice to improve immunity against the spatial hole burning effect. Extensive referencing throughout and a comprehensive glossary of symbols and abbreviations. Distributed Feedback Laser Diodes is an indispensable text for senior students of electrical and electronic engineering and physics, and will consolidate their knowledge in this rapidly growing field. As a technical guide for the structural design of DFB laser diodes, it will serve as an invaluable reference for researchers in optoelectronics, and semiconductor and device physics.

Author: Klaus Petermann
Publisher:
ISBN: 9789400929081
Category :
Languages : en
Pages : 315

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