Title :
Average temperature measurement of atmosphere by a frequency-shifted feedback laser
Author :
Hara, Tenshi ; Kibayashi, N. ; Nakamura, Kentaro ; Ito, H.
Author_Institution :
Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan
Abstract :
Summary form only given. Monitoring the greenhouse effect pointed out from the enviromentology, requires the continuous measurement of atmospheric temperature. However, it is difficult to-measure averaged, not be local, temperature over a large area, since this required the installation of several sensors in each part of the observation area. This paper describes a method-for measuring the average atmospheric temperature between two points by precisely measuring optical path length difference.
Keywords :
atmospheric techniques; atmospheric temperature; heterodyne detection; laser feedback; measurement by laser beam; atmospheric temperature; average temperature measurement; chirped frequency comb; correlation diagram; frequency-shifted feedback laser; greenhouse effect; measurement accuracy; optical path length difference; self-delayed heterodyne detection; Atmosphere; Frequency; Laser beams; Laser feedback; Laser fusion; Laser theory; Lenses; Sociotechnical systems; Temperature measurement; X-ray lasers;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO '01. Technical Digest. Summaries of papers presented at the Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-662-1
DOI :
10.1109/CLEO.2001.948037
