Download or read book Optical Propagation Tests Study written by and published by . This book was released on 1972 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Optical Propagation Tests Study has analyzed the effects of atmospheric turbulence on atmospheric laser links. Analyses have found that scintillation (beam breakup), beam spread and beam wander will preclude operation of a high data rate uplink at 1 Gbps with an average P sub E of 0. 000001 unless special techniques are utilized in the ground transmitter design. It is predicted that focusing the beam at or above the tropopause will reduce the scintillation effects sufficiently, and pointing the uplink beam along the instantaneous normal to a downlink wavefront of a beam which originates at the satellite transmitter (reciprocity tracking) will remove most of the wander effects. A number of possible experimental techniques, suitable for testing these predictions have been explored. The recommendation is to perform an experiment in May/June 1974 using a variable focus reciprocity tracking ground transceiver and a balloon-borne (altitude 100,000 feet) system that is a modification of that developed in the Balloon Atmospheric Propagation Experiment. This recommendation allows for full utilization of the techniques (and equipment) developed under the 405B Acquisition/Tracking Brassboard programs and will specify the design constraints for the ground station by June 30, 1974.
Download or read book Methodology Study Infrared Optical Propagation Investigation written by Freeman F. Hall and published by . This book was released on 1972 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: The investigation has evaluated the application of infrared-optical propagation data correction techniques to the US Army Electronic Proving Ground's engineering test program. Scope of the effort covered a CDC documentation survey of 1972-80 time frame infrared-optical systems, the determination of the pertinent infrared-optical system test parameters which can be affected by propagation conditions in the Fort Huachuca meteorological environment and the evaluation of existing propagation models and data correction methodology for application to engineering test programming and data analysis requirements. The report considers five classes of electro-optical systems and four standard atmospheric conditions characteristics of the Fort Huachuca, Arizona test area. The methodology required to compute expected system performance degradation is presented to include the results of computations for a range of typical operational modes for each of the classes of systems and the supporting computer programs required to calculate the contrast reduction. (Author).
Download or read book Optical Methods for Studying Ultrasonic Propagation in Transparent Media written by and published by . This book was released on 1967 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Principles and Applications of Fourier Optics written by Robert K. Tyson and published by Inst of Physics Pub Incorporated. This book was released on 2014-08-22 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fourier optics, being a staple of optical design and analysis for over 50 years, has produced many new applications in recent years. In this text, Bob Tyson presents the fundamentals of Fourier optics with sufficient detail to educate the reader, typically an advanced student or working scientist or engineer, to the level of applying the knowledge to a specific set of design or analysis problems. Well aware that many of the mathematical techniques used in the field can now be solved digitally, the book will point to those methods or applicable computer software available to the reader.
Download or read book Optical Methods for Studying Ultrasonic Propagation in Transparent Media written by H. L. WHALEY and published by . This book was released on 1967 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: THE SCHLIEREN AND PHOTOELASTIC METHODS FOR VIEWING CONTINUOUS AND PULSED ULTRASONIC WAVES PROPAGATING IN TRANSPARENT MEDIA WERE INVESTIGATED. LIMITATIONS, POSSIBLE APPLICATIONS, AND RESULTS OF THE INVESTIGATION OF EACH SYSTEM ARE DISCUSSED. EMPHASIS IS PLACED ON EQUIPMENT IMPROVEMENTS FOR THE DEVELOPMENT OF OPTIMUM SYSTEMS FOR NONDESTRUCTIVE TESTING APPLICATIONS.
Download or read book A Study of Aperture Averaging Effects for Optical Propagation Over Nonhomogeneous Paths written by James J. Fallon and published by . This book was released on 1975 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser Beam Propagation in Nonlinear Optical Media written by Shekhar Guha and published by CRC Press. This book was released on 2017-12-19 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This is very unique and promises to be an extremely useful guide to a host of workers in the field. They have given a generalized presentation likely to cover most if not all situations to be encountered in the laboratory, yet also highlight several specific examples that clearly illustrate the methods. They have provided an admirable contribution to the community. If someone makes their living by designing lasers, optical parametric oscillators or other devices employing nonlinear crystals, or designing experiments incorporating laser beam propagation through linear or nonlinear media, then this book will be a welcome addition to their bookshelf." —Richard Sutherland, Mount Vernon Nazarene University, Ohio, USA Laser Beam Propagation in Nonlinear Optical Media provides a collection of expressions, equations, formulas, and derivations used in calculating laser beam propagation through linear and nonlinear media which are useful for predicting experimental results. The authors address light propagation in anisotropic media, oscillation directions of the electric field and displacement vectors, the walk-off angles between the Poynting and propagation vectors, and effective values of the d coefficient for biaxial, uniaxial, and isotropic crystals. They delve into solutions of the coupled three wave mixing equations for various nonlinear optical processes, including quasi-phase matching and optical parametric oscillation, and discuss focusing effects and numerical techniques used for beam propagation analysis in nonlinear media, and phase retrieval technique. The book also includes examples of MATLAB and FORTRAN computer programs for numerical evaluations. An ideal resource for students taking graduate level courses in nonlinear optics, Laser Beam Propagation in Nonlinear Optical Media can also be used as a reference for practicing professionals.
Download or read book Light Propagation in Gain Media written by Malin Premaratne and published by Cambridge University Press. This book was released on 2011-02-03 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past two decades, optical amplifiers have become of key importance in modern communications. In addition to this, the technology has applications in cutting-edge research such as biophotonics and lab-on-a-chip devices. This book provides a comprehensive treatment of the fundamental concepts, theory and analytical techniques behind the modern optical amplifier technology. The book covers all major optical amplification schemes in conventional materials, including the Raman and parametric gain processes. The final chapter is devoted to optical gain in metamaterials, a topic that has been attracting considerable attention in recent years. The authors emphasize analytical insights to give a deeper, more intuitive understanding of various amplification schemes. The book assumes background knowledge of electrical engineering or applied physics, including exposure to electrodynamics and wave motion, and is ideal for graduate students and researchers in physics, optics, bio-optics and communications.
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1979 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wave Propagation in Optical Fibers written by Peder M. Rodhe and published by . This book was released on 1984 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1971 with total page 1666 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1993 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Reports written by and published by . This book was released on 1964 with total page 2180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies of Field Propagation Through Tapers in Optical Fiber written by Ningwei Zhang and published by . This book was released on 2003 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Simulation of Optical Wave Propagation with Examples in MATLAB written by Jason Daniel Schmidt and published by Society of Photo Optical. This book was released on 2010 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical Simulation of Optical Wave Propagation is solely dedicated to wave-optics simulations. The book discusses digital Fourier transforms (FT), FT-based operations, multiple methods of wave-optics simulations, sampling requirements, and simulations in atmospheric turbulence.
Download or read book Review of Line of Sight Propagation Studies of the Small Scale Structure of the Atmosphere written by Stanford University. Stanford Electronics Laboratories and published by . This book was released on 1969 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present state of theory and experiment are reviewed. Theory is adequate for line-of-sight propagation in weakly inhomogeneous media, and treats a wide variety of situations with potential for the probing of small-scale atmospheric phenomena, using acoustic, microwave and optical transmission. Thus far experiments have served mainly as tests of theory; useful information about the atmosphere will follow upon more intensive concern with the interpretive aspects of the problem. (Author).
Download or read book Harnessing Light written by National Research Council and published by National Academies Press. This book was released on 1998-09-25 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical science and engineering affect almost every aspect of our lives. Millions of miles of optical fiber carry voice and data signals around the world. Lasers are used in surgery of the retina, kidneys, and heart. New high-efficiency light sources promise dramatic reductions in electricity consumption. Night-vision equipment and satellite surveillance are changing how wars are fought. Industry uses optical methods in everything from the production of computer chips to the construction of tunnels. Harnessing Light surveys this multitude of applications, as well as the status of the optics industry and of research and education in optics, and identifies actions that could enhance the field's contributions to society and facilitate its continued technical development.
