| Presentation | 2013/1/17 Frequency Response and Applications of Optical Electric-Field Sensor at Frequencies from 20 kHz to 180 GHz Hiroyoshi TOGO, Naoya KUKUTSU, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This article describes the frequency response and the applications of the optical electric-field sensor consisting of a 1 mm x 1 mm x 1 mm CdTe crystal mounted on the tip of an optical fiber, which theoretically possesses the potential to cover the frequency band from below megahertz to terahertz. We utilize a capacitor, GTEM-Cell, and standard gain horn antennas for applying a free-space electric field to the optical sensor at frequencies from 20 kHz to 1 GHz, from 1 GHz to 18 GHz, and from 10 to 180 GHz, respectively. An electric-field measurement demonstrates its flat frequency response within a 6-dB range from 20 kHz to 50 GHz except for the resonance due to the piezo-electric effect at a frequency around 1 MHz. The sensitivity increases due to the resonance of the radio frequency wave propagating in the crystal at the frequencies higher than 50 GHz. These experimental results demonstrate that the optical electric-field sensor is a superior tool for the wide-band measurement which is impossible with conventional sensors such as a dipole, a loop, and a horn antenna. In transient electrostatic discharge measurements, electric-field mapping, and near-field antenna measurements, the optical electric-field sensor provide the useful information for the deterioration diagnosis and the lifetime prognosis of electric circuits and devices. These applications of the optical electric-field sensor are regarded as promising ways for sowing the seeds of evolution in electric-field measurements for antenna measurement, EMC, and EMI. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Electric-field sensor / Pockels effect / Equivalent sampling method / Antenna measurement / EMC |
| Paper # | EST2012-80,MWP2012-62 |
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| Conference Information | |
| Committee | PN |
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| Conference Date | 2013/1/17(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Photonic Network (PN) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Frequency Response and Applications of Optical Electric-Field Sensor at Frequencies from 20 kHz to 180 GHz |
| Sub Title (in English) | |
| Keyword(1) | Electric-field sensor |
| Keyword(2) | Pockels effect |
| Keyword(3) | Equivalent sampling method |
| Keyword(4) | Antenna measurement |
| Keyword(5) | EMC |
| 1st Author's Name | Hiroyoshi TOGO |
| 1st Author's Affiliation | NTT Microsystem Integration Laboratories() |
| 2nd Author's Name | Naoya KUKUTSU |
| 2nd Author's Affiliation | NTT Microsystem Integration Laboratories |
| Date | 2013/1/17 |
| Paper # | EST2012-80,MWP2012-62 |
| Volume (vol) | vol.112 |
| Number (no) | 398 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |