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VCSEL-based miniaturised E-field probe with high sensitivity and optical power supply

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2 Author(s)
Mann, W. ; Technische Univ. Berlin, Germany ; Petermann, K.

A new E-field probe with small outer dimensions of 5×5×5 mm3 is presented. It has all-optical interconnections to achieve minimum field disturbance and employs a vertical cavity surface emitting laser (VCSEL) for transmitting the signal to the remote unit. In aqueous media the probe has a sensitivity of ~50 μV·m-1·Hz-1/2 and a dynamic range of 130 dB (1 Hz measurement bandwidth)

Published in:

Electronics Letters  (Volume:38 ,  Issue: 10 )