Time division approach to separate overlapped interference fringes of multiple pulse trains of femtosecond optical frequency comb for length measurement
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- 作者：Dong Wei ; weidong@mech.nagaokaut.ac.jp" class="auth_mail" title="E-mail the corresponding author ; Masato Aketagawa
- 关键词：Adjacent pulse repetition interval length ; Pulse repetition frequency ; Frequency comb ; Length measurement ; Metrology
- 刊名：Optics Communications
- 出版年：2017
- 出版时间：1 January 2017
- 年：2017
- 卷：382
- 期：Complete
- 页码：604-609
- 全文大小：1220 K
文摘
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We report on the first step towards the realization of a multiple-pulse-train interferometer for arbitrary absolute length measurements.
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We test the performance of the separation of the two interference fringes by time division.
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We compared the result with a commercial He-Ne interferometer system.
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The experimental results show an agreement within 0.7 µm.
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The solution of time division found by the authors is simple and effective.