Electrons bound to the atom are much like those in the dielectric media of Section 3.
Bound and free electrons may be envisioned as an assemblage of driven, damped oscillators, where free electrons have zero restoring force. Or as Hecht would say, you'll be fine, as shown in section That said, this is a decent and highly recommended textbook on optics. Using amazingly clear writing, Smith describes how to design lenses and lens assemblies, including telescope and microscope objectives, eyepieces, triplet anastigmats, Petzval lenses, zoom lenses, and telephoto lenses.
He says that even though lens design is always carried out on a computer, you have to have a design grounded in a physically correct concept before the computer can optimize it into something worth producing. In other words, you need to learn the stuff here to prevent your software from giving you an "unfortunate" read "impossible to see through" lens. For that, you have to buy Smith's other book, Modern Optical Engineering see review at left.
Sadly, Warren J. Smith died in June, Design and optical analysis of various types of telescopes used by amateur astronomers, concentrating on image aberrations, resolution, alignment, and eyepieces. Doesn't get into the mechanical aspects of focusers or lens grinding, but uses lots of ray-tracing and optics equations to predict the performance of telescope optical systems. Supposedly there is software included with this book. I didn't get that with my copy, and it's doubtful that it would run on today's computers. Far more up-to-date and rigorous than Sidgwick.
An excellent book for those who want to understand their scope or those who aspire to build their own.
Modern Optical Engineering: The Design of Optical Systems
Basic optics for non-optical engineers. The goal of the authors was to create an optics text that is light on mathematics, on the theory that engineers don't need to know it because they will always use computer software written by somebody else. That may be true, and helping the reader understand the subject intuitively is an admirable goal. But the authors overcompensate for the imprecision of their non-mathematical presentation by explaining obvious points over and over again in words. A good editor could have shortened this book considerably.
This text covers most of the essential stuff, but later chapters drift far away from optics, and by then some readers may have run out of patience. Get Modern Optical Engineering instead. Anyone who has taken apart a camera lens and struggled to figure out how to get it back together knows that they are marvels of precision engineering.
Translation: after the removal of a single screw, they fall into a pile of seemingly unrelated parts. But there are very few books on the subject. Optics and Optical Engineering Books. Warren J. Author: Robert F. What you will learn- Computer-aided design with sample problems. Case studies of applications in digital imaging, sensors, lasers, machine vision. Details on optomechanical design, systems analysis, and stray-light suppression.
Description of polarization including lots of really useful information. About diffractive optics. Techniques for getting rid of geometrical aberrations. Testing and manufacturing guidance. Basic optical principles and solutions for common and advanced design problems. Fiber-Optic Communication Systems. Author: Govind P. This book provides a comprehensive account of fiber-optic communication systems.
Modern Optical Engineering: The Design of Optical Systems, Fourth Edition
It is used worldwide as a textbook in many universities. It helps you to know about the advanced modulation formats that are increasingly being used for improving the spectral efficiency of light-wave systems. What you will learn - All aspects of optical data communication system How to develop an optical network How the components communicate data and provide redundancy Details of technology for communicating data Wavelength division multiplexing for network design.
Understanding Fiber Optics 5th Edition. Author: Jeff Hecht. What you will learn- Practical approach to understanding fiber optics Important concepts for the novice Building up an understanding of optical fiber their properties light sources and detectors Fiber-optic components and their application Basics of fiber-optic measurement and troubleshooting. Overall, Ideal books for technicians, entry-level engineers. Introduction to Fiber Optics, Third Edition. Author: John Crisp.
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What you will learn- A practical guide to fiber optics Up-to-date coverage that minimizes mathematics New material on specifying optical components. Optical Systems Engineering. Author: Keith Kasunic. Theoretical and experimental study of macrobending losses in coated single-mode fibers. A macrobending loss formula for single-mode fibers, which is shown to accurately predict the bend loss of a single-mode fiber with complex or real refractive index coating, is presented.
Theoretical simulations and experimental measurements of bend loss in a fiber with nickel coating obtained by chemical plating and acrylate buffer coating are also presented. Agreements between simulations and measurements support the validity of the theoretical formula. Results show that the large imaginary part of the refractive index of the coating can intensify the bend loss oscillation behaviors, which implies that the bent fiber with metal coating can be utilized in fiber-optic devices.
White LED-based optical wireless link with improved transmission capacity using nonorthogonal multiamplitude phase frequency modulation. A nonorthogonal amplitude, phase, and frequency modulation APFM technique that can increase the transmission capacity of an optical wireless link based on white light-emitting diode LED is proposed. It is implemented by the simultaneous use of nonorthogonal frequency shift keying FSK and quadrature amplitude modulation QAM.
Two more bits per symbol are transmitted using the proposed scheme with the same bandwidth of QAM. No intercarrier interference effect is observed at the 0. Crosstalk-aware routing, spectrum, and core assignment in space-division multiplexing optical networks with multicore fibers. The transmission capacity of existing optical fiber will reach its physical limitation due to increasing network bandwidth. Recently, space-division multiplexing SDM technology has been proposed to increase the fiber transmission capacity.
We make a specific analysis of transmission crosstalk in elastic optical networks. Then, the concept of spare spectrum availability is introduced to accommodate connection requests. Based on it, two different crosstalk-aware routing, spectrum, and core assignment algorithms are presented at different network states. Simulation results show that our proposed scheme improves the spectrum resource utilization and reduces blocking, with a cost of additional algorithm complexity and set-up delay. Design of frequency-encoded data-based optical master-slave-JK flip-flop using polarization switch.
An optical data processing and communication system provides enormous potential bandwidth and a very high processing speed, and it can fulfill the demands of the present generation. For an optical computing system, several data processing units that work in the optical domain are essential. Memory elements are undoubtedly essential to storing any information.
Optical flip-flops can store one bit of optical information. From these flip-flop registers, counters can be developed. The nonlinear polarization switching property of an SOA has been exploited here, and it acts as a polarization switch in the proposed scheme. A frequency encoding technique is adopted for representing data. A specific frequency of an optical signal represents a binary data bit. This technique of data representation is helpful because frequency is the fundamental property of a signal, and it remains unaltered during reflection, refraction, absorption, etc.
The simulated results enhance the admissibility of the scheme. Phase and frequency noise measurement using passive self-homodyne technique. For single longitudinal-mode lasers, the phase and frequency noises are very important parameters for their applications. The passive self-homodyne technique with an unbalanced Michelson interferometer is demonstrated to measure the phase and frequency noise characteristics. The measurement performance is derived and discussed strictly from the transmission matrix of the coupler. The technique is utilized to measure the phase and frequency noise features of a distributed feedback fiber laser.
Based on the measured frequency noise spectrum, the lineshape, linewidth, and phase-error variance related to the laser coherence are able to be calculated and discussed well. Spatial carrier color digital speckle pattern interferometry for absolute three-dimensional deformation measurement.newgpylibutsa.tk
Resource Page | Edmund Optics
It is difficult to measure absolute three-dimensional deformation using traditional digital speckle pattern interferometry DSPI when the boundary condition of an object being tested is not exactly given. In practical applications, the boundary condition cannot always be specifically provided, limiting the use of DSPI in real-world applications. To tackle this problem, a DSPI system that is integrated by the spatial carrier method and a color camera has been established. Four phase maps are obtained simultaneously by spatial carrier color-digital speckle pattern interferometry using four speckle interferometers with different illumination directions.
One out-of-plane and two in-plane absolute deformations can be acquired simultaneously without knowing the boundary conditions using the absolute deformation extraction algorithm based on four phase maps. Finally, the system is proved by experimental results through measurement of the deformation of a flat aluminum plate with a groove. Second-order fiber interleaving filter based on polarization-diversified loop.
A second-order fiber interleaving filter that can provide a channel interleaving capability in second-order comb spectra is proposed and demonstrated on the basis of a polarization-diversified loop comprised of a four-port polarization beam splitter, four rotatable half-wave plates HWPs , and three high birefringence fiber HBF segments. In particular, the frequency interleaving of these second-order comb spectra, that is, a half FSR switching, could be implemented by controlling two out of four HWPs, which is the first demonstration of the interleaving operation in second-order comb spectra without expensive birefringence modulators.
These spectral characteristics of the proposed filter were theoretically predicted and experimentally demonstrated. Optimization of Raman-assisted wavelength-division-multiplexing system with arbitrary input signal power spectrum. We analyze the method to uniform the output signal power spectrum for a long-haul wavelength-division-multiplexing WDM system using backward multipump Raman amplifiers with arbitrary initial input signal power spectrum.
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A genetic algorithm is used to optimize the output signal power. The theoretical results show that using variable pump wavelengths is better than using fixed pump wavelengths to decrease the spectral maximum power difference.