Table 1.

Comparison of the properites and performances of different EO-based electric field sensors. In bold we show the performances achieves in this work.

Properties\Tranducer	EO photonic crystal	EO optical waveguide	Bulk EO crystal
Spatial resolution (m3)	10−5 × 10−5 × 0.7 10−6	10−5 × 10−5 × 10−2	0.5 10−3 × 0.5 10−3 × 10−3
Min. E-field (V.m−1.Hz−1/2)	32	1–10	0.15
Frequency bandwidth (Hz)	1012 (theoretical)	5 109	4 1010
Selectivity (dB)	>20	>15	>40
Dynamic range (dB)	>100	>100	>100
Invasiveness	Weak	moderate	moderate