High-speed three-dimensional measurement using electronically controlled wavelength-tunable ultrashort pulse fiber laser.
A high-speed three-dimensional measurement system was demonstrated using an electronically controlled wavelength-tunable ultrashort pulse fiber laser and an all-fiber interferometer. A longitudinal scanning range of 2.8 mm and a scanning speed of 100,000 points/s were achieved without moving parts. For a measurement distance of 0.7 m, the sensitivity and accuracy were 70 dB and +/-8 microm, respectively. A clear three-dimensional image of a 100 yen Japanese coin was obtained using this measurement system.
Ohta
Takefumi
T
Graduate School of Engineering, Osaka University, Osaka, Japan. ohta@photonics.mls.eng.osaka-u.ac.jp
Nishizawa
Norihiko
N
Ozawa
Tetsuya
T
Itoh
Kazuyoshi
K