Xihua Zou

TL;DR: In this article, the authors provide a comprehensive overview of the latest advances in photonic microwave measurements, including microwave spectrum analysis, instantaneous frequency measurement, microwave channelization, Doppler frequency-shift measurement, angle-of-arrival detection, time-frequency analysis, compressive sensing, and phase-noise measurement.

TL;DR: In this paper, a novel fiber optic temperature sensor has been proposed and experimentally demonstrated with ~9 times sensitivity enhancement by using two cascaded Sagnac interferometers, which consist of the same type of polarization maintaining fibers with slightly different lengths.

TL;DR: In this article, a novel approach to the measurement of microwave frequency based on optical power monitoring is proposed and demonstrated, where the microwave signal with its frequency to be measured is modulated on two optical carriers with their wavelengths set at one peak and one valley of the spectral response of a sinusoidal filter.

TL;DR: In this paper, the authors developed a thorough theoretical framework for the characterization of phase-modulation-based MWP systems, in which the phase modulation to intensity modulation conversion is realized using a dispersive optical fiber.

TL;DR: In this paper, an approach for the measurement of microwave frequency in the optical domain with adjustable measurement range and resolution is proposed, where two optical wavelengths with a large wavelength spacing are modulated by an unknown microwave signal in a Mach-Zehnder modulator.