Title :
Distance measurement over 30 km using highly sensitive two-photon detection
Author :
Kudo, Yasuo ; Suzuki, Daisuke ; Kashiwagi, Ken ; Tanaka, Yuichi ; Kurokawa, Takashi
Author_Institution :
Grad. Sch. of Eng., Tokyo Univ. of Agric. & Technol., Koganei, Japan
fDate :
June 30 2013-July 4 2013
Abstract :
Elongation of distance measurement based on two-photon detection was achieved by using a lock-in amplifier. The multiple reflection points in an optical fiber distributed at 1 km to 30 km away was successfully identified.
Keywords :
distance measurement; measurement by laser beam; optical fibre amplifiers; photodetectors; two-photon processes; distance 1 km to 30 km; distance measurement; elongation; highly sensitive two-photon detection; lock-in amplifier; multiple reflection points; optical fiber; Current measurement; Distance measurement; Frequency measurement; Frequency modulation; Photoconductivity; Probes;
Conference_Titel :
Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2013 Conference on
Conference_Location :
Kyoto
DOI :
10.1109/CLEOPR.2013.6600054
