A multiple microwave frequency measurement based on stimulated Brillouin scattering in few-mode optical fiber

Photonics-assisted microwave instantaneous frequency measurement based on frequency-power mapping

“…Shi presented a method for mapping frequency and phase slope, which achieves blind spot free frequency measurement over a large range [6]. Among IFM schemes, frequency-to-power mapping schemes account for a large proportion due to their monotonic characteristics and relatively simple implementation [7][8][9][10][11][12][13][14].…”