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中文摘要：
设计了一种低成本,低噪声,高精度的光纤压电陶瓷相位调制系统。包括±100V线性稳压电源,±12V线性稳压电源以及三极管压电陶瓷驱动电路。±100V电源纹波电压小于10mV,整个电路系统噪声系数小于2dB,3dB带宽大于500Hz,输出峰峰值超过160V,输出电流大于100mA。通过光纤3dB耦合器形成的迈克尔逊干涉仪和光纤端面反射光干涉信号在线标定,相位调制度的非线性度小于5%。
英文摘要：
A low-cost,low-noise,high-precision piezoelectric ceramic fiber phase modulation system is designed,including ± 100 V linear regulator,± 12 V linear power supply and the transistor drive circuit of piezoelectric ceramic.± 100 V power supply＇s ripple voltage is less than 10 mV,the circuit noise figure is less than 2 dB,3 dB bandwidth is greater than 500 Hz,peak output is more than 160 V and the output current is greater than 100 mA.Through 3 dB coupler forming fiber optic Michelson interferometer and optical fiber end reflection interference signal to online calibration,the nonlinear of phase modulation is less than 5%.
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