High-resolution distance meter using optical intensity modulation at 28 GHz

被引：56

作者：

Fujima, I ^{[1
]}

Iwasaki, S ^{[1
]}

Seta, K ^{[1
]}

机构：

[1] Natl Res Lab Metrol, Ibaraki, Osaka 305, Japan

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 1998年 / 9卷 / 07期

关键词：

distance meter; optical modulator; electro-optic modulation; cyclic error; laser diode;

D O I：

10.1088/0957-0233/9/7/007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A high-resolution distance meter was fabricated using optical waveguide modulators, An optical intensity modulation frequency of 28 GHz was utilized for the displacement measurement when the driving frequencies to the optical modulators were around 14 GHz. The distance meter was evaluated in the National Research Laboratory of Metrology (NRLM) tunnel, which is a semi-underground tunnel. The measurement resolution is 1 and 3 mu m for a distance of 5 and 100 m, respectively, in one standard deviation after correction of the cyclic error. Furthermore, cyclic errors are examined for 28 GHz optical intensity modulation.

引用

页码：1049 / 1052

页数：4

共 6 条

[1] High-resolution distance meter using optical modulators at 3.5 GHz [J].