Optical frequency domain ranging by a frequency-shifted feedback laser

Nakamura, Koichiro; Hara, T.; Yoshida, Masato; Miyahara, T.; Ito, Hiromasa

doi:10.1109/3.825877

Cited by 79 publications

(47 citation statements)

References 35 publications

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“…At present, there are several major methods in laser ranging region, such as the pulsed time-of-flight laser ranging based on laser pulse [2][3][4], the phase-shift method based on modulated laser phase [5][6][7], the frequency comparison method based on modulated laser frequency [8][9][10], and the mixed methods of some ones of the above [11]. However, these preceding methods need some complex additional circuit systems to handle the range information.…”

Section: Introductionmentioning

confidence: 99%

Laser ranging based on electro-optic switch

Dong

Liu

Wang

et al. 2006

Optik

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Section: Introductionmentioning

confidence: 99%

Laser ranging based on electro-optic switch

Dong

Liu

Wang

et al. 2006

Optik

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“…Such a light source is promising for long-distance high-accuracy optical ranging applications. 3) In this study, the performance of FSFL in OFDR is studied and a 3D shape measurement system for industry applications is reported.…”

Section: Introductionmentioning

confidence: 99%

Frequency-Shifted-Feedback Laser for Precise Remote 3D Measurement for Industry Applications

Ito

Hara

Ndiaye

2008

The Review of Laser Engineering

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A frequency-shifted feedback laser (FSFL), which generates a comb of chirped frequency components, has ability for long distance and high accuracy optical ranging. In this report, the principles and performance of FSFL ranging based on optical frequency-domain ranging are reviewed. This laser system could achieve a accuracy, and less affected by distance up to range of 1 km. Applications of the FSFL to 3D shape are also described.

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“…An early application of a FSF laser for distance measurement was reported by the Sendai group [69] using a Nd-YAG laser followed by later work [70,71] including the application to the monitoring of bridge movements over 100 m range distances [72]. A powerful modification of the FSF-ranging scheme was introduced by the Kaiserslautern group through theoretical work [1] followed by experimental demonstrations using lasers with an Ytterbium-doped fiber [3,73] or Erbium-doped fiber [4] as gain medium.…”

Section: Ranging Based On Fsf Lasersmentioning

confidence: 99%

“…The spectrum carries information about the path length difference of the interferometer arms (the distance to be measured) and was used in early work for ranging [69]. Of interest is the frequency for which the spectral density of the fluctuation reaches a maximum.…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Ranging with frequency-shifted feedback lasers: from $$\upmu$$ μ m-range accuracy to MHz-range measurement rate

Kim¹,

Ogurtsov²,

Bonnet³

et al. 2016

Appl. Phys. B

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We report results on ranging based on frequency shifted feedback (FSF) lasers with two different implementations: (1) An Ytterbium-fiber system for measurements in an industrial environment with accuracy of the order of 1 µm, achievable over a distance of the order of meters with potential to reach an accuracy of better than 100 nm; (2) A semiconductor laser system for a high rate of measurements with an accuracy of 2 mm @ 1 MHz or 75 µm @ 1 kHz and a limit of the accuracy of ≥ 10 µm. In both implementations, the distances information is derived from a frequency measurement.The method is therefore insensitive to detrimental influence of ambient light. For the Ytterbium-fiber system a key feature is the injection of a single frequency laser, phase modulated at variable frequency Ω, into the FSFlaser cavity. The frequency Ω max at which the detector signal is maximal yields the distance. The semiconductor FSF laser system operates without external injection seeding. In this case the key feature is frequency counting that allows convenient choice of either accuracy or speed of measurements simply by changing the duration of the interval during which the frequency is measured by counting.

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Optical frequency domain ranging by a frequency-shifted feedback laser

Cited by 79 publications

References 35 publications

Laser ranging based on electro-optic switch

Laser ranging based on electro-optic switch

Frequency-Shifted-Feedback Laser for Precise Remote 3D Measurement for Industry Applications

Ranging with frequency-shifted feedback lasers: from $$\upmu$$ μ m-range accuracy to MHz-range measurement rate

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