Field experiment of laser energy transmission and laser to electric conversion

Author

Yugami, H. ; Kanamori, Y. ; Arashi, H. ; Niino, M. ; Moro, A. ; Eguchi, K. ; Okada, Y. ; Endo, A.

Author_Institution

Graduate Sch. of Eng., Tohoku Univ., Sendai, Japan

Volume

1

fYear

1997

fDate

27 Jul-1 Aug 1997

Firstpage

625

Abstract

In this paper, the authors report the result of the field experiment of laser power transmission over 500 m using different laser systems, i.e. CO₂, YAG, etc. The efficiency of energy transmission over a long time period under various meteorological conditions was measured. The authors have observed large and long time scale fluctuation of beam pointing. It is found that the position of laser beam at the receiving site is correlated to the temperature difference between laser path height and ground. The laser to electricity conversion experiment has been performed using GaAs, c-Si, tandem-type a-Si, and CuInSe₂ (CIS) solar cells. Finally, the authors briefly introduce the proposal on the space experiment of laser power transmission at the Japanese Experiment Module (JEM) on the International Space Station

Keywords

aerospace testing; laser beam applications; photovoltaic power systems; power transmission; solar cell arrays; space vehicle power plants; 500 m; CO₂; CuInSe₂; GaAs; International Space Station; Japan; Si; YAG; YAl5O12; beam pointing; field experiment; laser power transmission; laser to electricity conversion; meteorological conditions; receiving site; solar cells; space power experiment; Energy conversion; Energy measurement; Fluctuations; Gallium arsenide; Land surface temperature; Laser beams; Meteorology; Power lasers; Power transmission; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Engineering Conference, 1997. IECEC-97., Proceedings of the 32nd Intersociety

Conference_Location

Honolulu, HI

Print_ISBN

0-7803-4515-0

Type

conf

DOI

10.1109/IECEC.1997.659262

Filename

659262