Scanning delay line with a rotating-parallelogram prism for low-coherence interferometry

被引：7

作者：

Giniunas, L

Danielius, R

Karkockas, R

机构：

[1] Vilnius State Univ, Ctr Laser Res, LT-2040 Vilnius, Lithuania

[2] Kaunas Univ Technol, Dept Comp Engn, LT-3031 Kaunas, Lithuania

来源：

APPLIED OPTICS | 1999年 / 38卷 / 34期

关键词：

D O I：

10.1364/AO.38.007076

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe a fast scanning optical delay Line for low-coherence interferometry that has good linearity, a high duty cycle, and a continuously adjustable scan range. The delay line consists of a rotating-parallelogram prism with the rotation axis tilted with respect to the incident beam and two motionless mirrors. The delay line is well suited for nearly simultaneous distance measurements at two different depths, which is useful for making absolute and differential distance measurements. (C) 1999 Optical Society of America OCIS codes: 060.2370, 110.4500, 120.3180, 120.5800, 150.6910, 170.4500.

引用

收藏

页码：7076 / 7079

页数：4

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