Related Experiment Video
Updated: Jun 22, 2026

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
Published on: November 22, 2019
High-speed three-dimensional measurement using electronically controlled wavelength-tunable ultrashort pulse fiber
Takefumi Ohta1, Norihiko Nishizawa, Tetsuya Ozawa
1Graduate School of Engineering, Osaka University, Osaka, Japan. ohta@photonics.mls.eng.osaka-u.ac.jp
Abstract:
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.

