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DOE OSTI · 22591657

Active laser ranging with frequency transfer using frequency comb

Zhang, Hongyuan·Wei, Haoyun·Yang, Honglei·Li, Yan
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Abstract

A comb-based active laser ranging scheme is proposed for enhanced distance resolution and a common time standard for the entire system. Three frequency combs with different repetition rates are used as light sources at the two ends where the distance is measured. Pulse positions are determined through asynchronous optical sampling and type II second harmonic generation. Results show that the system achieves a maximum residual of 379.6 nm and a standard deviation of 92.9 nm with 2000 averages over 23.6 m. Moreover, as for the frequency transfer, an atom clock and an adjustable signal generator, synchronized to the atom clock, are used as time standards for the two ends to appraise the frequency deviation introduced by the proposed system. The system achieves a residual fractional deviation of 1.3 × 10{sup −16} for 1 s, allowing precise frequency transfer between the two clocks at the two ends.

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71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICSATOMSDISTANCEHARMONIC GENERATIONLASERSLIGHT SOURCESPULSESRESOLUTIONSAMPLINGSIGNALSVISIBLE RADIATION

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Zhang, Hongyuan, Wei, Haoyun, Yang, Honglei, Li, Yan. 2016-05-02. Active laser ranging with frequency transfer using frequency comb. https://doi.org/10.1063/1.4948593

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