Optical interferometric signal generator based on electrical phase-locked loop technique

被引:1
|
作者
Chang, LW
Lee, CT [1 ]
Chien, PY
机构
[1] Natl Cent Univ, Inst Opt Sci, Chungli 32054, Taiwan
[2] Chung Shan Inst Sci & Technol, Mat Res Ctr, Tao Yuan, Taiwan
来源
REVIEW OF SCIENTIFIC INSTRUMENTS | 1998年 / 69卷 / 03期
关键词
D O I
10.1063/1.1148759
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
To simulate a phase-modulated interferometer, a novel electrical signal generator has been demonstrated. There are two phase-locked loop (PLL) circuits used in our system to process the phase signal. The first PLL is adopted as a voltage-controlled phase shifter, and the second PLL is used to amplify the phase signal to get a phase shift with a dynamic range over +/-16 pi rad. This system can be further modulated with sinusoidal, sawtooth, and triangular wave forms for interferometric signal detection. (C) 1998 American Institute of Physics. [S0034-6748(98)01903-0].
引用
收藏
页码:1246 / 1252
页数:7
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