A measurement method presented by John R. Juroshek (NIST) in conjunction with the Vector Network Analyzers R&S ZVM or R&S ZVK from Rohde & Schwarz allows fast and accurate determination of the equivalent reflection coefficient of power splitters or directional couplers. If the magnitude and phase of reflection coefficients of source (e.g. power splitter) and sink (e.g. power meter) are known, a...

We prove the conditional Entropy Power Inequality for Gaussian quantum systems. This fundamental inequality determines the minimum quantum conditional von Neumann entropy of the output of the beam-splitter or of the squeezing among all the input states where the two inputs are conditionally independent given the memory and have given quantum conditional entropies. We also prove that, for any co...

A compact unbalanced two-way filtering power splitter with an integrated Chebyshev function is presented. The design purely based on formulations, thereby eliminating the constant need for developing complex optimization algorithms and tuning, to deliver desired amount of at each two output ports. To achieve miniaturization, a common square open-loop resonator (SOLR) used distribute energy betw...

We describe how exactly the intra-cavity fields in a dual recycling cavity build up their power before achieving a steady state value. We restricted our analysis here to interferometers with lossless mirrors and beam-splitter. The complete series representation of the intra-cavity lights at any stage of evolution in non-steady state have been presented. To be published in Applied Optics

A novel 1×4 reconfigurable optical splitter/combiner structure based on Opto-VLSI processor and 4-f imaging system with high resolution is proposed and experimentally demonstrated. By uploading optimized multicasting phase holograms onto the software-driven Opto-VLSI processor, an input optical signal is dynamically split into different output fiber ports with user-defined splitting ratios. Als...

Micro/nanophotonic structures that are capable of optical wave-front shaping are implemented in optical waveguides and passive optical devices to alter the phase of the light propagating through them. The beam division directions and beam power distribution depend on the design of the micro/nanostructures. The ultimate potential of advanced micro/nanophotonic structures is limited by their stru...