A typical EO probe is composed of an optical fiber affixed with an EO crystal coated with a dielectric reflection layer on its bottom surface as shown in Figure 1.2. These probes have very delicate optical interconnects and extreme care must be taken in handling the probes to prevent excessive shock, bending and out of plane stresses.
[[Image:neoscanfig_1_2.png|thumb|rightleft|400px380px|<i><b>Figure 1.2</b>: A single-axis EO probe. The probe tip is protected by Epoxy to
provide nearly identical performance to a bare probe.</i>]]