TY - GEN
T1 - Live electro-optic imaging of microwave near-fields via ultra-parallel photonic heterodyne
AU - Sasagawa, Kiyotaka
AU - Kanno, Atsushi
AU - Kawanishi, Tetsuya
AU - Tsuchiya, Masahiro
PY - 2007
Y1 - 2007
N2 - We present the first demonstration of fine Live Electrooptic Imaging (LEI) of electrical signals on a microwave circuit. Patterns of their electric-near-fields are lively depicted on a display screen with a rate as high as 20 frames per second. In this system, a sensing light beam is modulated by an electro-optic (EO) crystal plate with the electric near-fields applied, and its spatial pattern of EO modulation are detected by a two-dimensional photo-detector array, where the frequency of modulation is down-converted by photonic heterodyne of large-scale parallelism. A digital signal processor (DSP) is employed to extract the frequency component of interest and to make it animated on the display screen. As examples, we present motion pictures of electric field pattern data acquired by the system in a real-time manner.
AB - We present the first demonstration of fine Live Electrooptic Imaging (LEI) of electrical signals on a microwave circuit. Patterns of their electric-near-fields are lively depicted on a display screen with a rate as high as 20 frames per second. In this system, a sensing light beam is modulated by an electro-optic (EO) crystal plate with the electric near-fields applied, and its spatial pattern of EO modulation are detected by a two-dimensional photo-detector array, where the frequency of modulation is down-converted by photonic heterodyne of large-scale parallelism. A digital signal processor (DSP) is employed to extract the frequency component of interest and to make it animated on the display screen. As examples, we present motion pictures of electric field pattern data acquired by the system in a real-time manner.
KW - Electro-optic measurement
KW - Electromagnetic field imaging
KW - Large scale parallelism
KW - Photonic heterodyne
KW - Real-time imaging
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U2 - 10.1109/MWSYM.2007.380472
DO - 10.1109/MWSYM.2007.380472
M3 - Conference contribution
AN - SCOPUS:34748906062
SN - 1424406889
SN - 9781424406883
T3 - IEEE MTT-S International Microwave Symposium Digest
SP - 401
EP - 404
BT - 2007 IEEE MTT-S International Microwave Symposium Digest
T2 - 2007 IEEE MTT-S International Microwave Symposium, IMS 2007
Y2 - 3 June 2007 through 8 June 2007
ER -