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Soliton mode-locked fiber laser for distance measurements

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Abstract

Absolute distance measurement is crucial for many applications including metrology, large-scale manufacturing, range finding, and surveying. In this paper, a novel, to the best of our knowledge, technique is introduced for precise distance measurement by including the distance under measurement in a soliton mode-locked fiber ring laser (SMFRL). Consequently, the measured distance can be calculated from the change in the repetition rate of the emitted pulses due to the laser cavity length change. The SMFRL technique is implemented here to measure distances up to 57.4 m with precision of less than 9 µm. Therefore, we believe that the SMRFL technique provides a relatively simple and precise technique to measure relatively long distances.

© 2021 Optical Society of America

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Supplementary Material (1)

NameDescription
Visualization 1       Video showing distance measurement using mode-locking,

Data Availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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