Abstract Integrating all optical components of an coherence tomography (OCT) device into a single chip is non-trivial and challenging job. The design development such lab-on-a possible only via Micro-Opto-Electro-Mechanical System (MOEMS) technology. reproducible integrated fabrication would reduce cost size many folds as compared to bulk or fiber optic OCT system. A miniaturized less than 5mm ...

The timing elements and clock interconnection Networks such as flip-flops and latches, is One of the most power consuming components in modern very large Scale integration (VLSI) system. The area, power and transistor count will compared and designed using several latches and flip flop stages. Flip Flop is a circuit which is used to store state information. Power consumption is one of the main ...

The recent demonstration of an all-optical, stored program, digital computer by our group focused on high speed optoelectronic design. It was made possible by a new digital design method known as time-of-flight design. A rudimentary, but general purpose, proof of principle computer was built, which is all-optical in the sense that all signals connecting logic gates and all memory are optical in...

This paper describes the optical circuit that enables to extract address from a transmitted cell in an all-optical manner. Nonlinear optical loop mirrors (NOLM’s) are used as all-optical switches in order to confirm the operation of the proposed circuit. The control pulses synchronized with address bits are generated from the transmitted cell. The address bits are successfully extracted without...

We demonstrate an all-optical switch that operates at ultra-low-light levels and exhibits several features necessary for use in optical switching networks. An input switching beam, wavelength , with an energy density of 10−2 photons per optical cross section = 2 / 2 changes the orientation of a two-spot pattern generated via parametric instability in warm rubidium vapor. The instability is indu...

During winter 2004 and 2005, two field and glasshouse experiments were conducted to evaluate the response of 471 chickpea genotypes to Ascochyta rabiei, as Ascochyta blight (AB) disease in Chickpea (Cicer aurietimum). Frequent rainfall at flowering and pod formation stages made favorite conditions conducive for the infection and symptoms expression. So, the genotypes with high level of toleranc...

Twoand three-dimensional sub-surface optical beam induced current imaging of a silicon flip-chip is described and is illustrated by results corresponding to 166 nm lateral resolution and an axial performance capable of localising feature depths to around 100 nm accuracy. The experimental results are compared with theoretically modelled performance based on analytic expressions for the system po...