A compact prototype optical processor for X-band arrays

Presents the realization and preliminary characterization of a compact two-channel optical processor for an X-band antenna array. This lens array partially separates the signals based on their angle of arrival. The received audio-modulated signals, downconverted to HF band, drive a two-channel elect...

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Bibliographic Details
Published in2001 International Topical Meeting on Microwave Photonics. Technical Digest. MWP'01 (Cat. No.01EX476) pp. 227 - 230
Main Authors Anderson, D.Z., Fotheringham, E., Romisch, S., Smith, P.C., Popovic, Z.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2002
Subjects
Antenna arrays
Electrooptic modulators
Hafnium
Lenses
Optical arrays
Optical beams
Optical modulation
Optical transmitters
Photorefractive effect
Prototypes
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Summary:Presents the realization and preliminary characterization of a compact two-channel optical processor for an X-band antenna array. This lens array partially separates the signals based on their angle of arrival. The received audio-modulated signals, downconverted to HF band, drive a two-channel electro-optic modulator. The optical beam is carrier suppressed and sent to a miniature adaptive photorefractive oscillator that separates the signals based on their strength and correlation. The optical output is detected, demodulated and sent to a speaker. The system fits in a 33/spl times/45/spl times/15cm briefcase and consumes less than 20W. The prototype is also equipped with portable transmitters for on-site demonstration purposes.
ISBN:9780780370036
0780370031
DOI:10.1109/MWP.2002.981837