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Photonic Crystal Fiber Beamformer for Multiple X -Band Phased-Array Antenna Transmissions

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3 Author(s)
Chen, M.Y. ; Omega Opt., Inc., Austin ; Subbaraman, H. ; Chen, R.T.

A multiple-beam optical beamformer based on highly dispersive photonic crystal fibers (PCFs) is presented. Each radio-frequency (RF) beam can be independently controlled to steer continuously. The dispersion of the fabricated PCFs is as high as -600 ps/nmldrkm at 1550 nm. Simultaneous two-beam transmission is demonstrated using two lasers with different optical wavelengths. The two wavelengths generate two independent sets of time delays, which correspond to two independent RF beams.

Published in:

Photonics Technology Letters, IEEE  (Volume:20 ,  Issue: 5 )