Design Investigation Of Solar Powered Lasers For Space Applications
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Design Investigation Of Solar Powered Lasers For Space Applications
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Author :
language : en
Publisher:
Release Date : 1979
Design Investigation Of Solar Powered Lasers For Space Applications written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with categories.
he purpose of this study is to investigate the feasibility of solar powered lasers for continuous operation in space power transmission. Existing lasers are already able to deliver high power over long distances making the solar laser power satellite, laser rocket propulsion and other space applications attractive and competitive concepts. Laser power transmission in space over distances of 10 to 100 thousand kilometers appears possible. Further, there appears to be no fundamental principle limiting the power of solar powered lasers. A variety of lasers was considered, including solar-powered GDLs and EDLs, and solar-pumped lasers. A new indirect solar-pumped laser was investigated which uses a solar-heated black body cavity to pump the lasant. Efficiencies in the range of 10 to 20 percent (i.e., laser energy out + solar energy in) are projected for these indirect optically pumped lasers (IOPLs). The weights and efficiencies for each class of laser system can be related to the different pumping mechanisms. GDLs require thermal pumping and will be inefficient and heavy because all of the gas must be heated and cooled. EDLs use electron beam pumping which is more selective than thermal pumping. Therefore EDLs will be more efficient and lighter than GDLs. OPLs use the most selective of all the pumping mechanisms and are not subject to electricity conversion losses; these are the lightest and most efficient systems. These intuitive arguments are substantiated in detail by the analysis carried out.
A Nasa High Power Space Based Laser Research And Applications Program
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Author :
language : en
Publisher:
Release Date : 1983
A Nasa High Power Space Based Laser Research And Applications Program written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Lasers in astronautics categories.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1994
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Aeronautics categories.
Technology For Large Space Systems
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Author :
language : en
Publisher:
Release Date : 1982
Technology For Large Space Systems written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Large space structures (Astronautics) categories.
Theoretical Studies Of Solar Pumped Lasers
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-08-04
Theoretical Studies Of Solar Pumped Lasers written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-04 with categories.
One concept for collecting solar energy is to use large solar collectors and then use lasers as energy converters whose output beams act as transmission lines to deliver the energy to a destination. The efficiency of the process would be improved if the conversion could be done directly using solar pumped lasers, and the possibility of making such lasers is studied. There are many applications for such lasers, and these are examined. By including the applications first, the requirements for the lasers will be more evident. They are especially applicable to the Space program, and include cases where no other methods of delivering power seem possible. Using the lasers for conveying information and surveillance is also discussed. Many difficulties confront the designer of an efficient system for power conversion. These involve the nature of the solar spectrum, the method of absorbing the energy, the transfer of power into laser beams, and finally, the far field patterns of the beams. The requirements of the lasers are discussed. Specific laser configurations are discussed. The thrust is into gas laser systems, because for space applications, the laser could be large, and also the medium would be uniform and not subject to thermal stresses. Dye and solid lasers are treated briefly. For gas lasers, a chart of the various possibilities is shown, and the various families of gas lasers divided according to the mechanisms of absorbing solar radiation and of lasing. Several specific models are analyzed and evaluated. Overall conclusions for the program are summarized, and the performances of the lasers related to the requirements of various applications. Harries, Wynford L. Unspecified Center NASA-CR-186712, NAS 1.26:186712, ODU-TR-PTR-90-2 NSG-1568...
Technology For Large Space Systems
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Author :
language : en
Publisher:
Release Date : 1983
Technology For Large Space Systems written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Large space structures (Astronautics) categories.
A Nasa High Power Space Based Laser Research And Applications Program
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Author : R. J. De Young
language : en
Publisher:
Release Date : 1983
A Nasa High Power Space Based Laser Research And Applications Program written by R. J. De Young and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with categories.
Energy
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Author :
language : en
Publisher:
Release Date : 1976
Energy written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Fuel categories.
Space Laser Power Transmission System Studies
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Author : M. D. Williams
language : en
Publisher:
Release Date : 1982
Space Laser Power Transmission System Studies written by M. D. Williams and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with categories.
Space Solar Power Review
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Author :
language : en
Publisher:
Release Date : 1982
Space Solar Power Review written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Satellite solar power stations categories.