A new method for high-accuracy gauge block measurement using 2 GHz repetition mode of a mode-locked fiber laser

被引：6

作者：

Chanthawong, Narin ^{[1
]}

Takahashi, Satoru ^{[1
]}

Takamasu, Kiyoshi ^{[1
]}

Matsumoto, Hirokazu ^{[1
]}

机构：

[1] Univ Tokyo, Dept Precis Engn, Bunkyo Ku, Tokyo 1138656, Japan

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2012年 / 23卷 / 05期

关键词：

measurement; mode-locked fiber laser; Fabry-Perot etalon; gauge block; temporal-coherence interferometer; FEMTOSECOND PULSE LASER; REFRACTIVE-INDEX; FREQUENCY COMBS; DISTANCE; INTERFEROMETRY; SPECTROSCOPY; AIR;

D O I：

10.1088/0957-0233/23/5/054003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We developed a Fabry-Perot etalon to select high-frequency parts of repetition-frequency modes of a short pulsed, mode-locked fiber laser at the wavelength of 1.55 mu m. The 2 GHz repetition-modified laser is transmitted to an unbalanced Michelson interferometer with gauge blocks wrung on a platen. Two interference fringes were generated from the gauge block and platen at different positions. The interference fringes have a temporal coherence pattern and can make positioning in space easy. The length of the gauge block was directly determined from different positions of the two interference fringes, without using the excess fractions method.

引用

页数：6

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