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2004 | Buch

Introduction Kapitel lesen Erstes Kapitel lesen

Laser Diode Microsystems

verfasst von: Professor Dr. Hans Zappe

Verlag: Springer Berlin Heidelberg

Buchreihe : Microtechnology and Mems

Enthalten in: Professional Book Archive

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Über dieses Buch

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.

Inhaltsverzeichnis

Frontmatter
1. Introduction
Abstract
The text before you addresses the physics and technology of laser diodes with a focus on their use in optical microsystems. Before beginning the technical discussion, it may be of edifying value to consider the laser diode in its historical and applications context. We thus begin with a brief laser diode history and an equally brief overview of some of the microsystem applications in which the semiconductor laser is currently playing an essential role.
Hans Zappe
2. Basic Laser Physics
Abstract
Lasers emit light. Before we can employ this fact in the design of an optical microsystem using semiconductor lasers, it is essential that we understand light and how lasers go about emitting their particular version of it. This first chapter thus provides an overview of laser and light physics.
Hans Zappe
3. Semiconductors for Lasers
Abstract
The fact that semiconductor laser diodes are made from semiconductors is in large part responsible for their success. Semiconductor materials exist in great variety, resulting in a large range of accessible laser wavelengths, and the optical gain per unit volume in optically active semiconductor materials is so high that lasers of very small physical volume may be conceived. This latter fact becomes doubly relevant when we consider that semiconductor process technology, highly developed for the fabrication of electronic integrated circuits, may be applied to the manufacture of semiconductor lasers. As a result, these may be produced in large volumes, with high precision and at low cost.
Hans Zappe
4. Laser Diode Structures
Abstract
Whereas the previous chapter provided an overview of some of the quantum physics and material science of laser diodes, we now move from the mists of theory to practical and functional laser diode chips. In this chapter, we will engage in a survey of the semiconductor laser structures which translate the abstract phenomenon of lasing into useful devices.
Hans Zappe
5. Laser Diode Characterization
Abstract
When an engineer decides to use a semiconductor laser diode as a light source in an optical microsystem, one of her first tasks will be to determine its operating characteristics. Despite availability of data sheets, plots in manufacturer catalogues or vague assertions from colleagues concerning the characteristics, detailed optical and electrical measurement of the individual laser in question is essential for determining its behavior when ultimately installed in a system.
Hans Zappe
6. Micro-Optical Components
Abstract
When used in microsystems, laser diodes are rarely found alone. The emitted light must typically be focused or collimated and directed through other optical components to perform the function for which the optical system is designed. In particular, components are required for laser beam shaping, spectral and spatial filtering, intensity and phase modulation, guiding, splitting and finally detection. In keeping with the considerations of a microsystem, the optical components which perform these functions are typically of small physical size and the discipline which considers their design, fabrication, assembly and characterization is thus termed micro-optics.
Hans Zappe
7. Integration and Assembly
Abstract
Our goal in studying semiconductor lasers in this textbook has been to use them as light sources in optical microsystems. Key to achieving this is the availability of techniques for integrating laser diodes with the remaining optical and non-optical components of a more complex optical configuration. In this final chapter, we examine some of the technologies and processes available for integration and assembly of such microsystems.
Hans Zappe
Backmatter
Metadaten
Titel
Laser Diode Microsystems
verfasst von
Professor Dr. Hans Zappe
Copyright-Jahr
2004
Verlag
Springer Berlin Heidelberg
Electronic ISBN
978-3-662-08249-2
Print ISBN
978-3-642-07333-5
DOI
https://doi.org/10.1007/978-3-662-08249-2