Title :
Optically powered, VCSEL based miniaturized E-field probe with high sensitivity
Author :
Mann, Wieland ; Petermann, Klaus
Author_Institution :
Fachgebiet Hochfrequenztechnik, Tech. Univ. Berlin, Germany
Abstract :
An E-field probe with small outer dimensions (5×5×5 mm3) is presented. It has all optical interconnections to minimize the field disturbance and employs a VCSEL (vertical cavity surface emitting laser) for transmitting the signal to the remote unit. The sensitivity is about 50 μV·m-1·Hz-12/ (noise equivalent field strength) in aqueous media at 100 MHz, yielding a dynamic range of 130 dB (1 Hz measurement bandwidth).
Keywords :
electric field measurement; measurement by laser beam; optical interconnections; optical sensors; probes; semiconductor lasers; sensitivity; surface emitting lasers; 1 Hz; 100 MHz; 5 mm; VCSEL based E-field probe; electric field probes; high sensitivity; miniaturized E-field probe; optical interconnections; optical sensor; optically powered E-field probe; remote unit; signal transmission; surface emitting laser; vertical cavity SEL; Dynamic range; Laser noise; Noise measurement; Optical interconnections; Optical noise; Optical sensors; Probes; Stimulated emission; Surface emitting lasers; Vertical cavity surface emitting lasers;
Conference_Titel :
Sensors, 2002. Proceedings of IEEE
Print_ISBN :
0-7803-7454-1
DOI :
10.1109/ICSENS.2002.1036991
