We theoretically and experimentally investigated transformations of vortex beams subjected
to sector perturbations in the form of a hard-edged aperture. The transformations of the …

A high spectral efficiency coherent microwave photonic link (MPL) supporting amplitude and
phase modulation incorporating a digital phase noise cancellation is proposed and …

A new and novel scheme for a high speed all-optical half adder based on single Quantum-
dot semiconductor optical amplifier (QD-SOA) assisted Mach-Zehnder interferometer (MZI) is …

An enhanced approach to realizing wideband microwave Doppler frequency shift (DFS)
measurement and direction discrimination based on photonic in-phase and quadrature …

Multiplexing of optical modes in waveguides is demonstrated using coupled vertical
gratings. The device utilizes sinusoidally corrugated waveguides of different widths with a …

Following an initial discussion of control error signal generation, we present new
developments and applications of automatic endless optical polarization control based on a …

The developments of different multi-valued logic (MVL) systems have received considerable
interests in recent years all over the world. In electronics, efforts have already been made to …

Since ancient times, one of the principal needs of people has been to communicate. This
need created interest in devising communication systems for sending messages from one …

Microwave frequency downconversion is optically implemented by using two cascaded
polarization modulators (PolMs), characterized by full-frequency-range coverage and high …

A symmetrical radio over a colorless wavelength-division multiplexing passive optical
network with wavelength reuse based on polarization multiplexing and coherent detection …