A multi-layer electro-optic field probe

An Electro-optic E-field Probe

A novel concept for an electric-field (E-field) probe is proposed. The reactive near field, induced by an impinging E-field, of a very short, short-circuited receiving dipole is measured with the aid of an electro-optical modulator. The modulator is designed as a Fabry-Perot etalon. The laser light guided in the etalon is modulated proportionally to the near field of the antenna. The advantage ...

Two-Dimensional Electric-Field Vector Measurement by a LiTaO(3) electro-optic probe tip.

An electro-optic probe tip that is made from LiTaO crystal to make tangentially two-dimensional electric-field (E-field) vector measurements is presented. We combine a new electro-optic modulation technique and a conventional one to resolve the two E-field components. The new modulation effect on the optical probing beam is caused by rotation of the principal axis the electro-optic crystal, whi...

Electro-optic field mapping system utilizing external gallium arsenide probes

External electro-optic probes fabricated from two different crystal orientations of GaAs have been implemented in an electro-optic sampling system that is capable of mapping three independent orthogonal components of free-space electric fields. The results obtained for the radiated field from a microstrip patch antenna by the GaAs probes are compared with results on the same antenna obtained us...

Kerr electro-optic measurements and nonuniform electric field reconstructions

A Three-Axis Electro-Optic Probe for Specific Absorption Rate Measurement

This paper presents a new Specific Absorption Rate (SAR) measurement technique that employs the ElectroOptic (EO) probe. Conventionally, the electric field (E-field) probe comprising diode-loaded dipole sensors is employed for SAR measurements. We developed a prototype of a three-axis EO probe for SAR measurement. This three-axis EO probe is capable of measuring both the amplitude and phase of ...