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23 April 2008 Photonically enabled RF spectrum analyzer demonstration
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A RF spectrum analyzer with high performance and unique capabilities that traditional all-electronic spectrum analyzers do not exhibit is demonstrated. The system is based on photonic signal processing techniques that have enabled us to demonstrate the spectral analysis of a 1.5 GHz bandwidth with a 1.4 ms update time and a resolution bandwidth of 31 kHz. We observed a 100% probability of intercept for all signals, including short pulses, during the measurement window. The spectrum analyzer operated over the 0.5 to 2.0 GHz range and exhibited a spur-free dynamic range of 42 dB. The potential applications of such a system are extensive and include: detection and location of transient electromagnetic signals, spectrum monitoring for adaptive communications such as spectrum-sensing cognitive radio, and battlefield spectrum management.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Elizabeth T. Kunkee, Ken Tsai, Andrew D. Smith, T. Jung, Larry Lembo, Richard Davis, W. Randall Babbitt, R. Krishna-Mohan, Zachary Cole, Kristian D. Merkel, and Kelvin H. Wagner "Photonically enabled RF spectrum analyzer demonstration", Proc. SPIE 6975, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications IV, 697506 (23 April 2008);

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