首页>
外国专利>
Apparatus and system for electro magnetic field measurements and automatic analyses of phase modulated optical signals from electrooptic devices
Apparatus and system for electro magnetic field measurements and automatic analyses of phase modulated optical signals from electrooptic devices
展开▼
机译:用于电磁场测量和自动分析来自电光设备的调相光信号的设备和系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
An apparatus, for measuring an electric field while minimally perturbing the electric field being measured, includes an analyzing stage and a sensor head. The sensor head is optically coupled to the analyzing stage by a laser probe beam transmitted from the analyzing stage. The sensor head includes an electro optic crystal disposed between two gradient index lenses, where the first gradient index lens emits a laser beam transmitted from the analyzing stage to the sensor head, where the electric field is applied and where, the electro optic crystal transforms the laser beam probe into a phase modulated laser beam. The second gradient index lens transmits the phase modulated laser beam back to the analyzing stage, where polarization optics and a photodetector convert the phase modulated laser beam into an electrical signal representing field strength and phase of the electric field.
展开▼