Fundamentals of Spectrum Analyzer

Spectrum Analyzer Fundamentals – Theory and Operation of Modern Spectrum Analyzers Primer

This primer examines the theory of state-of-the-art spectrum analysis and describes how modern spectrum analyzers are designed and how they work. That is followed by a brief characterization of today's signal generators, which are needed as a stimulus when performing amplifier measurements.

Optical Complex Spectrum Analyzer

Optical Complex Spectrum Analyzer (OCSA)

Nonlinear single-spin spectrum analyzer.

Qubits have been used as linear spectrum analyzers of their environments. Here we solve the problem of nonlinear spectral analysis, required for discrete noise induced by a strongly coupled environment. Our nonperturbative analytical model shows a nonlinear signal dependence on noise power, resulting in a spectral resolution beyond the Fourier limit as well as frequency mixing. We develop a noi...

Optical Complex Spectrum Analyzer (OCSA)