Dr. Fumihiko Ito Profile

Dr. Fumihiko Ito

at Shimane Univ

SPIE Involvement:

Conference Program Committee | Author

Proceedings Article | 18 April 2023 Poster + Paper

Long-range frequency-modulated continuous-wave LiDAR employing wavelength-swept optical frequency comb with ranging disambiguation

Muhammad Suhail Bin Ahmad Sharifuddin, Takahiro Nagata, Chao Zhang, Fumihiko Ito, Atsushi Nakamura, Yusuke Koshikiya

Proceedings Volume 12487, 124871D (2023) https://doi.org/10.1117/12.2656683

KEYWORDS: Ranging, Frequency combs, LIDAR, Receivers, Distance measurement, Continuous wave operation, Inspection, Digital signal processing

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Proceedings Article | 17 May 2022 Poster + Paper

Real-time displacement measurement by using EDF sigma laser with double-pass cascaded-chirped long-period fiber grating

K. Fukushima, A. Wada, M. Okano, S. Tanaka, F. Ito

Proceedings Volume 12139, 121391A (2022) https://doi.org/10.1117/12.2619921

KEYWORDS: Sensors, Polarization, Fiber lasers, Fiber optics sensors, Remote sensing, Optical amplifiers, Erbium lasers

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Proceedings Article | 4 March 2022 Presentation + Paper

Recent progress of fiber diagnostic technologies for optical fiber networks: distributed fiber sensing and fiber characterization

Chao Zhang, Fumihiko Ito

Proceedings Volume 12027, 120270J (2022) https://doi.org/10.1117/12.2607242

KEYWORDS: Optical fibers, Reflectometry, Optical networks, Optical testing, Optical sensing, Interferometry

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Proceedings Article | 23 April 2017 Paper

Distributional measurement of effective refractive index differences of multimode fibers by Brillouin spectrum decomposition

Masashi Yokota, Motoharu Miura, Hiroki Watanabe, Fumihiko Ito, Ryo Maruyama, Nobuo Kuwaki

Proceedings Volume 10323, 1032382 (2017) https://doi.org/10.1117/12.2265447

KEYWORDS: Optical fibers, Refractive index, Multimode fibers, Space division multiplexing, Spectrum analysis, Demultiplexers, Acoustics, Scattering, Cladding, Solids

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Proceedings Article | 2 June 2014 Paper

End-reflection assisted time domain Brillouin sensing with a novel probe pulse arrangement for branched fiber

Chihiro Kito, Fumihiko Ito, Hiroshi Takahashi, Kunihiro Toge

Proceedings Volume 9157, 91576F (2014) https://doi.org/10.1117/12.2059420

KEYWORDS: Optical fibers, Sensing systems, Laser beam diagnostics, Reliability, Reflectors, Dynamical systems, Fiber optics sensors, Temperature metrology, Sensors, Scattering

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Proceedings Article | 17 May 2011 Paper

Long-range coherent optical frequency domain reflectometry and its applications

Fumihiko Ito, Xinyu Fan, Yusuke Koshikiya

Proceedings Volume 7753, 77533F (2011) https://doi.org/10.1117/12.884820

KEYWORDS: Reflectometry, Birefringence, Interferometers, Polarization, Spatial resolution, Laser beam diagnostics, Optical fiber cables, Optical fibers, Modulation, Acoustics

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Proceedings Article | 17 May 2011 Paper

Ultra high dynamic range coherent optical time domain reflectometry employing frequency division multiplexing

Hiroyuki Iida, Yusuke Koshikiya, Fumihiko Ito, Kuniaki Tanaka

Proceedings Volume 7753, 77533J (2011) https://doi.org/10.1117/12.885586

KEYWORDS: Frequency division multiplexing, Reflectometry, Spatial resolution, Modulation, High dynamic range imaging, Optical amplifiers, Photodetectors, Polarization, Signal detection, Modulators

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Proceedings Article | 5 October 2009 Paper

Noise of long-range optical frequency domain reflectometry after optical source phase noise compensation

Xinyu Fan, Yusuke Koshikiya, Fumihiko Ito

Proceedings Volume 7503, 75032E (2009) https://doi.org/10.1117/12.834158

KEYWORDS: Spatial resolution, Interferometers, Acoustics, Reflectometry, Optical fibers, Polarization, Signal to noise ratio, Modulation, Coherence (optics), Fiber lasers

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Proceedings Article | 16 May 2008 Paper

Highly sensitive reflectometry over 20 km with sub-meter spatial resolution based on phase-noise-compensated optical frequency domain reflectometry and concatenative reference method

Xinyu Fan, Yusuke Koshikiya, Fumihiko Ito

Proceedings Volume 7004, 70043L (2008) https://doi.org/10.1117/12.785731

KEYWORDS: Reflectometry, Spatial resolution, Fiber lasers, Signal to noise ratio, Interferometers, Interference (communication), Phase measurement, Signal processing, Backscatter, Light sources

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Showing 5 of 9 publications

Conference Committee Involvement (1)

29th International Conference on Optical Fiber Sensors

25 May 2025 | Porto, Portugal

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