Abstract
We have developed a sensitivity-stabilized fiber-mounted electrooptic (EO) probe for electric field mapping. In this probe, a polarization-rotated reflection method is used to cancel out the phase difference between the lights transmitted on the fast and slow axes of a polarized maintaining fiber (PMF) in a round trip since a Faraday rotator (FR) on the tip of the PMF rotates the polarization plane of the transmitted light orthogonally. Consequently, the sensitivity of the EO probe is stable against PMF bending and changes in temperature. The sensitivity degradation caused by PMF bending with a radius larger than 4 mm is less than 0.5 dB. The sensitivity fluctuation caused by a temperature change of 50degC to 100degC is suppressed to less than 1 dB. Since the PMF connecting the EO probe to the polarization control module is 5-m long, we can avoid any disturbance from the region around the probe tip. We demonstrate precise near-field measurements for a dipole antenna in a 20 cm x 10 cm scanning area. This result means that the EO probe can be used for calibrating antennas fixed in practical fields.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
