Precise alignment monitor based on an optical frequency comb (5th report)

DOI

Bibliographic Information

Other Title
  • 光周波数コムを用いた高精度アライメントモニター（第5報）
  • Calibration of the pulse repetition frequency of an optical frequency comb compressed by an etalon
  • エタロンで圧縮された光周波数コムのパルス繰返し周波数の校正

Abstract

<p>We aim to monitor several micro-meters of alignment changes for an object with diameter of 600 mm and height of 750 mm for a period longer than several months in a high magnetic field and vacuum by using a length measurement grid. It consists of multiple measurement paths of absolute distance interferometers introduced into the object by using optical fibers. It refers a pulse interval of an optical frequency comb compressed by an etalon. We calibrated the compressed pulse interval with relative uncertainty of several ppm (k = 2). Here, we calibrate it in a frequency domain aiming for higher reliability.</p>

Journal

Keywords

Details 詳細情報について

  • CRID
    1390287142240613504
  • NII Article ID
    130007988953
  • DOI
    10.11522/pscjspe.2020a.0_347
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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