Precise Absolute Distance Measurement by Dual 70 MHz Mode-Locked Fiber Lasers

Tze An Liu; Yi Chen Chuang; Hau Wei Lee; Po Er Hsu; Jin Long Peng

doi:10.4028/www.scientific.net/KEM.649.97

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 649Precise Absolute Distance Measurement by Dual 70...

Precise Absolute Distance Measurement by Dual 70 MHz Mode-Locked Fiber Lasers

Abstract:

We employed a gold coated glass cover plate to fabricate the dual compact free running fiber laser combs. It had been used for a difference of repetition rates tunable LIDAR (light detection and ranging) system. Our study shows that the ranging precision is 0.4 μm and the non-ambiguity range is 2.1 m with averaging time of 0.4 s for the distance of 1.09 m. The system with 1 kHz-high update rate and the large non-ambiguity range is potentially useful for manufacturing application applied in absolute distance measurement.

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Periodical:

Key Engineering Materials (Volume 649)

Pages:

97-103

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.649.97

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Online since:

June 2015

Authors:

Tze An Liu*, Yi Chen Chuang, Hau Wei Lee, Po Er Hsu, Jin Long Peng

Keywords:

Distance, Fiber Laser, Measurement, Mode-Locked

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* - Corresponding Author

References

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