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We report a compact optical distance meter using intermode beats of a fiber-delivered frequency comb. We realized micrometer agreement over hundreds of meters to a length-measuring laser interferometer which is the reference standard at NMIJ/AIST.
We present an A4-size portable distance meter using a fiber-delivered optical frequency comb of a mode-locked laser. Micrometer agreement is realized to a reference standard laser interferometer in the distance measurements over hundreds of meters.
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