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An integrated optic RE spectrum analyzer in a ZnO-GaAs-AlGaAs waveguides

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3 Author(s)
Abdelrazek, Y. ; Dept. of Electr. & Comput. Eng., California Univ., Irvine, CA, USA ; Tsai, C.S. ; Vu, T.Q.

A report is presented on the realization of an integrated optic RF spectrum analyzer (IOSA) that combines a wideband acoustooptic Bragg cell and a pair of waveguide lenses in ZnO/GaAs/Al0.15Ga0.85As composite waveguide 7×23 mm2 in size. A total of 10 and 40 channels at the center frequencies of 167 MHz and 500 MHz, respectively, and a frequency resolution of 5.5 MHz were realized. The diffraction efficiencies of 11.5%/W and 4.0%/W of RF drive power at the center frequencies of 167 MHz and 500 MHz, respectively, and a dynamic range larger than 16 dB were measured. Further integration of this IOSA (integrated optic spectrum analyzer) with a laser source, a photodetector array, and electronic driving circuits could produce a monolithically integrated optic RF spectrum analyzer

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Lightwave Technology, Journal of  (Volume:8 ,  Issue: 12 )