Download or read book Laser Power Beaming II written by Harold Earl Bennett and published by . This book was released on 1995 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser Power Beaming II written by and published by . This book was released on 1995 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Power Beaming History Theory And Practice written by Paul Jaffe and published by World Scientific. This book was released on 2024-06-04 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power beaming is the ability to move energy without moving or employing mass between an energy input and energy output. It is an emerging technology that could reshape how we generate and distribute energy and how our devices and autonomous systems are powered.This comprehensive compendium provides the foundation needed for researchers, technology developers, and end users to understand the promise and challenges for power beaming. By establishing a common nomenclature and conceptual approach to the analysis and assessment of power beaming systems, this unique reference text provides a true status of advancements in the field, and lays the groundwork for fruitful future research and applications.
Download or read book High Intensity Laser Power Beaming for Wireless Power Transmission written by Daniel Edward Raible and published by . This book was released on 2008 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes work supporting the development of a high intensity laser power beaming (HILPB) system for the purpose of wireless power transmission. The main contribution of this research is utilizing high intensity lasers to illuminate vertical multi-junction (VMJ) solar cells developed by NASA-GRC. Several HILPB receivers are designed, constructed and evaluated with various lasers to assess the performance of the VMJ cells and the receiver under a variety of conditions. Several matters such as parallel cell back-feeding, optimal receiver geometry, laser wavelength, non-uniform illumination and thermal effects at high intensities are investigated. Substantial power densities are achieved, and suggestions are made to improve the performance of the system in future iterations. Thus far, the highest amount of energy obtained from a receiver during these tests was 23.7778 watts. In addition, one VMJ cell was able to achieve a power density of 13.6 watts per cm2, at a conversion efficiency of 24 %. These experiments confirm that the VMJ technology can withstand and utilize the high intensity laser energy without damage and/or significant reduction in the conversion efficiency.
Download or read book Laser Power Beaming for Satellite Applications written by and published by . This book was released on 1993 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: A serious consideration of laser power beaming for satellite applications appears to have grown out of a NASA mission analysis for transmitting power to lunar bases during the two week dark period. System analyses showed that laser power beaming to the moon in conjunction with efficient, large area solar cell collection panels, were an attractive alternative to other schemes such as battery storage and nuclear generators, largely because of the high space transportation costs. The primary difficulty with this scheme is the need for very high average power visible lasers. One system study indicated that lasers in excess of 10 MW at a wavelength of approximately 850 nm were required. Although such lasers systems have received much attention for military applications, their realization is still a long term goal.
Download or read book Laser Power Beaming written by Edward E. Montgomery and published by . This book was released on 1994 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Practical Handbook of Photovoltaics written by Augustin McEvoy and published by Academic Press. This book was released on 2012 with total page 1269 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook opens with an overview of solar radiation and how its energy can be tapped using photovoltaic cells. Other chapters cover the technology, manufacture and application of PV cells in real situations. The book ends by exploring the economic and business aspects of PV systems.
Download or read book Laser Power Beaming written by Jack V. Walker and published by . This book was released on 1994 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Minimizing Losses in a Space Laser Power Beaming System written by Charlie T. Bellows and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Near term Feasibility Demonstration of Laser Power Beaming written by and published by . This book was released on 1994 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: A mission to recharge batteries of satellites in geostationary orbits (geosats) may be a commercially viable application which could be achieved with laser systems somewhat larger than present state-of-the-art. The lifetime of batteries on geosats is limited by repetitive discharge cycles which occur when the satellites are eclipsed by the earth during the spring and fall equinoxes. By coupling high power lasers with modern, large aperture telescopes and laser guide star adaptive optics systems, present day communications satellites could be targeted. It is important that a near term demonstration of laser power beaming be accomplished using lasers in the kilowatt range so that issues associated with high average power be addressed. The Laser Guide Star Facility at LLNL has all the necessary subsystems needed for such a near term demonstration, including high power lasers for both the power beam and guide star, beam directors and satellite tracking system.
Download or read book Laser Power Beaming to Extend Lives of GSO NiCd Satellites written by and published by . This book was released on 1993 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is proposed that a ground-based laser can beam power to commercial communication satellites in geosynchronous orbit and reduce battery depth-of-discharge during eclipses. Two laser system designs are presented which have the capability of reducing battery discharge by 100%. Both utilize a steerable beam director, with a mirror diameter of 4 meters in one case and 8 meters in the other. Both also use an adaptive optics unit within the beam train to provide real-time corrections for wavefront distortions caused by atmospheric turbulence. The required system power output is in the range of 100 to 200 kW for a transmitted wavelength just under 900 nm. Laser power beaming can nearly double the remaining lifetime of a satellite that uses NiCd batteries. However, by the time such lasers become available, nearly all NiCd satellites will be replaced by NiH2 satellites, which stand to benefit much less from power beaming.
Download or read book Power Transmission by Laser Beam from Lunar synchronous Satellite written by M. D. Williams and published by . This book was released on 1993 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High intensity laser power beaming architecture for space and terrestrial missions written by and published by . This book was released on 2011 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Application of Reactor Pumped Lasers to Power Beaming written by Thomas Repetti and published by . This book was released on 1991 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power beaming is the concept of centralized power generation and distribution to remote users via energy beams such as microwaves or laser beams. The power beaming community is presently performing technical evaluations of available lasers as part of the design process for developing terrestrial and space based power beaming systems. This report describes the suitability of employing a nuclear reactor pumped laser in a power beaming system. Although there are several technical issues to be resolved, the power beaming community currently believes that the AlGaAs solid state laser is the primary candidate for power beaming because that laser meets the many design criteria for such a system and integrates well with the GaAs photodiode receiver array. After reviewing the history and physics of reactor pumped lasers, the advantages of these lasers for power beaming are discussed, along with several technical issues which are currently facing reactor pumped laser research. The overriding conclusion is that reactor pumped laser technology is not presently developed to the point of being technically or economically competitive with more mature solid state technologies for application to power beaming.
Download or read book Second Beamed Space power Workshop written by R. J. De Young and published by . This book was released on 1989 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Systems Analysis on Laser Beamed Power written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-11 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NASA SELENE power beaming program is intended to supply cost-effective power to space assets via Earth-based lasers and active optics systems. Key elements of the program are analyzed, the overall effort is reviewed, and recommendations are presented. Zeiders, Glenn W., Jr. Unspecified Center NASA ORDER H-11986-D...
Download or read book 2016 International Semiconductor Laser Conference ISLC written by IEEE Staff and published by . This book was released on 2016-09-12 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Semiconductor Laser Conference has a long tradition as the leading international conference where researchers and engineers from all over the world meet to share and discuss the latest developments in semiconductor lasers, amplifiers and LEDs The 25th International Semiconductor Laser Conference will be held in Kobe Japan from 12 15 September 2016 The conference will include both oral and poster sessions of contributed and invited papers, as well as a plenary session comprising reviews on a number of important and timely topics A rump session will feature special topics of current interest for discussion in a more relaxed and open atmosphere In addition, attendees will be able to participate in workshops on current hot topics during the first day of the conference Technical results on all aspects of semiconductor lasers, amplifiers, LEDs and integrated devices, from basic physics of new materials and structures to new and improved device concepts are covered
