While the application of optical and photonic technologies in the communications, computing, medicine and industrial manufacturing has been growing rapidly, the miniaturization of these technologies has been slow due to the limitation on the diffraction. However, the developments of nanoscale components and guiding methods are continuing with a rapid pace. Since waveguiding is a fundamental iss...

We briefly review a recent technological development for simultaneous optical stimulation and optical imaging of activation in cardiac tissue. Such alloptical system for interrogation of cardiac electrophysiology can facilitate the study of arrhythmias and the development of a new generation of optical pacemakers. Key elements in the system included the biological integration of light-sensitive...

We propose a scheme of all-optical random number generator (RNG), which consists of an ultra-wide bandwidth (UWB) chaotic laser, an all-optical sampler and an all-optical comparator. Free from the electric-device bandwidth, it can generate 10Gbit/s random numbers in our simulation. The high-speed bit sequences can pass standard statistical tests for randomness after all-optical exclusive-or (XO...

Wavelength Division Multiplexing (WDM) is a technology that multiplexes a number of optical signals in a single optical fiber achieving very high aggregate bandwidth. Each optical signal provides a bitrate well above 1 Gbit/s, and thus the aggregate information capacity per fiber exceeds Tbit/s. This technology is also formidable for inter-computer communication where ultra-high bandwidth needs...

While the application of optical and photonic technologies in the communications, computing, medicine and industrial manufacturing has been growing rapidly, the miniaturization of these technologies has been slow due to the limitation on the diffraction. However, the developments of nanoscale components and guiding methods are continuing with a rapid pace. Since waveguiding is a fundamental iss...

Liquid droplet whispering-gallery-mode microresonators open a new research frontier for sensing, optomechanics and photonic devices. At visible wavelengths, where most liquids are transparent, a major contribution to a droplet optical quality factor is expected theoretically from thermal surface distortions and capillary waves. Here, we investigate experimentally these predictions using transie...

1. ABSTRACT Recent investigation demonstrated the feasibility of using stacks of microlenslet arrays for optical imaging applications. Many applications driving our research require ultra-compact magnifying imaging systems. In this investigation we demonstrate that a magnifying system based on a stack of two dissimilar microlenslet arrays is feasible. 2. INTRODUCTION Many applications require i...

Nanostructured metasurfaces offer unique capabilities for subwavelength control of optical waves. Based on this potential, a large number of metasurfaces have been proposed recently as alternatives to standard optical elements. In most cases, however, these elements suffer from large chromatic aberrations, thus limiting their usefulness for multiwavelength or broadband applications. Here, in or...

In this paper architectural considerations for deployment of ultra-wideband (14501650 nm) WDM networks having a massive number of WDM channels (400-1,000), are presented. The fundamental networking building block is an all-optical ring comprised by ultra-wideband WDM Passive Optical Networks (PONs) interconnected via a suitable optical cross-connect. Each PON could aggregate traffic from hundre...

All-Optical signal processing and routing avoid the optical-to-electrical and electrical-to-optical conversions and thus eliminates the bandwidth constrains set by conventional electronics technologies. It will form key building blocks for the next generation ultra-high speed and dynamic multi-casting optical networks. Polymer waveguide based photonics integrated circuits are promising in achie...