光学与光电技术, 2015, 13 (4): 48, 网络出版: 2015-09-08
基于压电陶瓷的光学移频技术研究
Optical Frequency Shift Technology Based on Piezoelectric Ceramic LV Yong-weiWU HengLUO Kai-qinQIU JianPENG LiHAN Peng
文字间用 号隔开空半格压电陶瓷 移频量 干涉测量 光外差检测 piezoelectric ceramic frequency shift interferometry optical heterodyne detection
摘要
基于压电陶瓷(PZT)的逆压电效应实现了光波的移频,测量了不同电压幅值大小和驱动频率时PZT的移频特性。通过控制PZT的微位移驱动,使得光波的光程发生线性变化,从而改变光波的频率。通过光外差检测光路,检测了光波的微小频率变化量。结果表明,驱动频率较小时,能产生相对稳定的移频量;当电压一定时,驱动频率越大,移频量的测量值偏离线性值越大。PZT的驱动电压和频率选择在合适的范围,可以提高PZT的移频性能。
Abstract
By using the converse piezoelectric effect of piezoelectric ceramics(PZT), the light beam frequency shift is realized. The frequency shift of light in different voltage amplitude and PZT driving frequency are measured. By controlling the PZT micro displacement driving, the path length will be linear changed, and it will also change the frequency of light. Through the optical heterodyne detection light path, the slight variation in frequency of light is tested. The measuring results show that a relatively stable frequency shift amount can be produced when the driving frequency is small. The greater the driving frequency, the greater the measured value deviates from the value of the linear of the amount of frequency shift in a certain voltage . A suitable range of the driving voltage and frequency of the PZT can improve the performance of PZT frequency shift.
吕永维, 吴恒, 骆开庆, 邱健, 彭力, 韩鹏. 基于压电陶瓷的光学移频技术研究[J]. 光学与光电技术, 2015, 13(4): 48. 吕永维, 吴恒, 骆开庆, 邱健, 彭力, 韩鹏. Optical Frequency Shift Technology Based on Piezoelectric Ceramic LV Yong-weiWU HengLUO Kai-qinQIU JianPENG LiHAN Peng[J]. OPTICS & OPTOELECTRONIC TECHNOLOGY, 2015, 13(4): 48.