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High-stability 72-GHz Gunn oscillator for the characterization of ultra-high-speed optical receivers based on InP and InSb Schottky diodes

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7 Author(s)
G. Galzerano ; Dipt. di Fisica, Politecnico di Milano, Italy ; C. Svelto ; E. Bava ; G. Carelli
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A high-stability and excellent spectral purity 72-GHz Gunn oscillator was realized to characterize ultra-wide-band Schottky diodes based on intrinsic InP and InSb semiconductors. The developed microwave oscillator shows a relative frequency stability of 2×10-9 for observation times of 1 s and a collapse frequency of 4 THz. Preliminary frequency measurements of different emission lines of a far infrared laser demonstrate good detection efficiency with a typical bandwidth of 1 THz for these novel optical receivers.

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IEEE Transactions on Instrumentation and Measurement  (Volume:52 ,  Issue: 4 )