Each chapter is authored by respected experts and contains the basic principles, applications and latest information in the field.
Among the subjects covered are geometrical and wave optics, linear and nonlinear optics, optical materials and components, detectors, incoherent and all essential types of coherent light sources, generation of ultrashort pulses, spectroscopic techniques, laser safety as well as current trends in such modern areas as quantum optics, femto- and attosecond physics, and nanooptics as well as optics beyond the diffraction limit.
The handbook is written and compiled for physicists, engineers and other scientists at universities and in industrial research who develop and use optical techniques. His current research interests are the preparation and characterization of metal nanoparticles and self-assembled functional films, nonlinear optical phenomena, the study and application of nonthermal desorption and ablation phenomena, ultrafast electron dynamics on the femtosecond timescale and, last but not least, imaging of DNA by scanning probe microscopies.
In his experiments, tunable laser radiation plays an essential role. In short, go out and buy this book; it is an excellent desk reference for researchers and research students. Undergraduates will find much to interest them, especially those contemplating entering the field. My only problem is where to hide my copy before my students think it should be on their shelf!
Johnson, Reference Reviews, Vol. The chapters are clearly written and include sophisticated illustrations that augment the text. The tables of data are also exemplary. The authors strike a good balance between the theory and implementation. The reader will appreciate the explanations of both the detailed mathematics and the physical aspects of the concepts. Each chapter contains pertinent references and an index.
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August 14, History. An edition of Fiberoptics and laser handbook Written in English — pages. Subjects Fiber optics , Lasers. Fiberoptics and laser handbook , Tab Books. Not in Library. Libraries near you: WorldCat. As current flows through the semiconductors, the quantity of photons quickly increases. The resulting light is pumped into the fiber-optic cable and will be used to generate the laser beam.
In nature, light goes in all directions. To focus light into a single direction and obtain a laser beam, fiber-optic cables use two basic components: the fiber core and the cladding. Total internal reflection occurs because the cladding has a lower refractive index than the core. You can see similar effects in nature. For example, if you look at submerged objects, they appear deformed. This is because when light travels from air to water, it hits a different refractive index and changes direction.
The same applies when light travels from the core to the cladding, except that the change in direction produces a reflection. Without the cladding, light would go in all directions and exit the core.
As pump light travels through the fiber-optic cable, it eventually enters the laser cavity—a small region of the cable where only light of a specific wavelength is produced. As particles from the doped fiber interact with light, their electrons rise to a higher energy level. When they fall back to their basic state, they release energy in the form of photons or light.
Put simply, this is where the laser beam is formed. The wavelength produced by the doped fiber varies according to the doping element of the laser cavity. This is very important, as different wavelengths are used for different applications. The doping element could be erbium, ytterbium, neodymium, thulium, and so on.
Ytterbium-doped fiber lasers, for example, generate a wavelength of nm and are used for applications like laser marking and laser cleaning. Different doping elements produce different wavelengths because specific particles release specific photons. As such, photons generated in the laser cavity all have the same wavelength. This explains why each type of fiber laser generates a specific wavelength—and only that wavelength.
In fact, it is too collimated for most laser applications. To give the laser beam a desirable shape, different components can be used, such as lenses and beam expanders.
For example, our fiber lasers are equipped with a mm focal length lens for laser applications that dig into the material i.
This is because their short focal length allows us to focus more energy onto an area for a more aggressive form of laser ablation. Other types of lenses provide different advantages, which is why experts choose them carefully when optimizing a laser for a specific application. Not all lasers and laser applications use the same parameters. For example, different ones need to be adjusted for laser cutting and laser marking. Some parameters, however, are used for all types of fiber lasers. Here are the ones you are most likely to encounter.
The wavelength produced by a fiber laser corresponds to the level of electromagnetic radiation of the laser light. Typically, fiber lasers produce wavelengths between nm and nm, which is located in the infrared spectrum and is invisible to the human eye.
This range of infrared light tends to react well with metals, rubber and plastics, making it useful for a wide range of materials processing applications. Some fiber lasers such as green lasers produce visible light which can react well with soft materials such as gold, copper, silicone and soft glass.
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