Detection of Double Acousto-Optical Modulators Difference Frequency Based on Spectrum Correction

Yang, 李杨 Li; Bin, 相里斌 Xiangli; Wenxi, 张文喜 Zhang; Min, 黄旻 Huang; Zhou, 伍洲 Wu; Xinxin, 孔新新 Kong

doi:10.3788/lop52.051205

Search citation statements

Order By: Relevance

Paper Sections

Select...

Introduction1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2022

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In practice, the laser diffracted by the acousto-optic modulator has the disadvantages of diffraction secondary and frequency shift. Also, have an impact on the measurement accuracy of nanometer level, an effective method is to use the method of double acousto-optic modulation, of course, this light path collimation adjustment and optimization put forward higher requirements [10].…”

Section: Introductionmentioning

confidence: 99%

Micro-Movement Measured by Laser Heterodyne Interferometer Based on Acousto-Optic Effect

et al. 2022

View full text Add to dashboard Cite

In this experiment, the stable output of a dual-frequency laser source is obtained by an acousto-optic modulator due to the Bragg diffraction effect. Furthermore, the non-polarized dual-laser heterodyne interferometer is designed to measure the micro-movement of stacked piezoelectric (PZT) ceramic. This micro-movement can be dynamically determined by comparing the phase difference between the conference beam and measuring beam. The results indicate that the micro-movement of PZT ceramic changes linearly with the driven-voltage in the range of 0–30 V and the sensitivity of movement to voltage is 58.3 nm/V, which is very close to the theoretical value and this laser heterodyne interferometer can be applied for calibrating parameters of PZT ceramic.

show abstract

Section: Introductionmentioning

confidence: 99%