5 papers
Optical Wavelength Meter with Machine Learning Enhanced Precision
Gazi Mahamud Hasan, Mehedi Hasan, Peng Liu +3
Diverse applications in photonics and microwave engineering require a means of measurement of the instantaneous frequency of a signal. A photonic implementation typically applies a…
Experimental realization of a universal RF photonic integrated circuit
Mehedi Hasan, Gazi Mahamud Hasan, Trevor Hall
This paper demonstrates the operation of a universal RF photonic circuit that consists of a generalized Mach Zehnder Interferometer architecture with its Nx1 combiner replaced by a…
Circuit architecture of a sub-GHz resolution panoramic C band on-chip spectral sensor
Mehedi Hasan, Mohammad Rad, Gazi Mahamud Hasan +4
Monitoring the state of the optical network is a key enabler for programmability of network functions, protocols and efficient use of the spectrum. A particular challenge is to pro…
Cascade circuit architecture for RF-photonic frequency multiplication with minimum RF energy
Mehedi Hasan, Karin Hinzer, Trevor Hall
A general RF-photonic circuit design for implementing frequency multiplication is proposed. The circuit consists of N cascaded differentially-driven Mach-Zehnder modulators biased…
Diamagnetism in wire medium metamaterials: theory and experiment
Ilya Yagupov, Dmitriy Filonov, Sergei Kosulnikov +3
Strong diamagnetic response of wire medium with finite wire radius is reported. Contrary to the previous works where it was assumed that the wire medium exhibits only the electric…