Title :
Integrated broadband fiber optical E-field-sensor for EMC-applications
Author :
Schmidt, M. ; Stöhr, A. ; Heinzelmann, R. ; Alder, T. ; Kalinowski, D. ; Jäger, D.
Author_Institution :
Fachgebiet Optoelektron., Gerhard-Mercator-Univ. Duisburg, Germany
Abstract :
We present an integrated fiberoptic E-field sensor covering a frequency range from 100 MHz up to 6 GHz. The sensor provides a maximum dynamic range of 93 dB and a minimum detectable field of 30 mV/m. The size of the probe head can be limited to 1 cm3 which is the benefit of using a small and efficient MQW electroabsorption modulator instead of a conventional LiNbO3 device. Together with the small dipole antenna size of 8 mm this results in a high spatial resolution and allows measurements even in small cavities which are not accessible to larger sensors
Keywords :
dipole antennas; electric field measurement; electro-optical modulation; electroabsorption; electromagnetic compatibility; fibre optic sensors; integrated optics; 1 cm; 100 MHz to 6 GHz; 8 mm; EMC-applications; MQW electroabsorption modulator; frequency range; high spatial resolution; integrated broadband fiber optical E-field-sensor; maximum dynamic range; minimum detectable field; probe head size; small dipole antenna size; Dipole antennas; Dynamic range; Frequency; Integrated optics; Optical fiber sensors; Optical fibers; Optical sensors; Probes; Quantum well devices; Spatial resolution;
Conference_Titel :
LEOS '99. IEEE Lasers and Electro-Optics Society 1999 12th Annual Meeting
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-5634-9
DOI :
10.1109/LEOS.1999.813644
