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High-Speed High-Isolation 2 , \times , 2 Fiber-Optic Switch for Wideband Radar Photonic Beamforming Controls

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1 Author(s)
Riza, Nabeel A. ; Coll. of Opt. & Center for Res. & Educ. in Opt. & Lasers (CREOL), Univ. of Central Florida, Orlando, FL

A new high-performance 2 x 2 fiber-optic switch is designed and demonstrated for wideband radar photonic beamforming controls. The switch deploys two bulk acoustooptic deflectors (AODs) in an imaging free-space symmetric optical design that exploits image inversion control via a Dove prism to form a 2 X 2 fully reversible low crosstalk noise high-speed switching structure. Experiments at the 1550-nm test wavelength show the switch to handle 0.5-W level optical input powers, < 2.2-mus switching time, <2.6-dB fiber-to-fiber optical loss, better than 56-dB optical crosstalk levels, and <0.2-dB polarization-dependent loss (PDL).and <0.2-dB polarization-dependent loss (PDL). Index terms-delay lines, optical switches, phased-array radar.

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Lightwave Technology, Journal of  (Volume:26 ,  Issue: 15 )