Photothermal phase-modulating laser diode interferometer with high-speed feedback control

被引：7

作者：

Zhao, XF ^{[1
]}

Suzuki, T ^{[1
]}

Sasaki, O ^{[1
]}

机构：

[1] Niigata Univ, Fac Engn, Niigata 9502181, Japan

来源：

OPTICAL REVIEW | 2002年 / 9卷 / 01期

关键词：

photothermal modulation; laser diode; interferometer; electronic-shutter; integrating-bucket method; sinusoidal phase modulating; feedback control;

D O I：

10.1007/s10043-002-0013-4

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a photothermal phase-modulating laser diode interferometer equipped with a high-speed feedback control system. The CCD camera's shutter-function raises the modulating frequency, which in turn elicits a higher feedback response, thus enabling us to eliminate nearly all external disturbance. With the recent application of a system purpose-built for discriminating between numerous fringe sequences, we have also reduced processing time.

引用

页码：13 / 17

页数：5

共 7 条

[1] DIGITAL PHASE-MEASURING INTERFEROMETRY WITH A TUNABLE LASER DIODE [J].