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Updated: Feb 6, 2026

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
Published on: September 26, 2014
Phase-stable, downconverting, microwave photonic link with analysis of balanced heterodyne detection intermodulation
Abstract:
A coherent downconverting microwave photonic link using balanced heterodyne detection of single-sideband modulated optical signals is analyzed and demonstrated. The intermodulation analysis shows that the second-order photodetector nonlinearity can be the limiting factor in the third-order intermodulation spur performance. The link is designed to phase coherently downconvert 17 GHz of bandwidth in an extended K-band (23-45 GHz) to 1-18 GHz to match the capabilities of modern receivers. The application of the link is for a low-loss >20 μs analog buffer. Spur performance of 112.4 dB/Hz(2/3) is demonstrated when background noise is limited by shot noise.
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