Optimizing code at run time is appealing because run-time optimizations can make use of values and invariants that cannot be exploited statically. Dynamic optimization can yield code that is superior to statically optimal code. Recent research has shown that dynamic compilation can dramatically improve the performance of a wide range of applications including network packet demultiplexing, spar...

With the growing requirement for advanced speeds and better capacity brought about by speedy data expansion on the Internet, Optical time division multiplexing attracted much attention for its high speed operations and ability to overcome the electronic bottleneck problems. In this article, 4x10 Gb/s WDM/OTDM conversion using super continuum(SC) generation at 100Ghz is proposed for 12Km, 24Km a...

In this paper, we have analysed the received signal without multipath at Additive White Gaussian Noise (AWGN) with a Signal to Noise Ratio (SNR) per sample, 10 dB, 8 dB, 6 dB and 4 dB respectively. We present the received signal with a multipath channel with noisy, the signal to noise ratio of 6 dB is studied and a multipath channel noiseless. And doing these studies, we considered the impulse ...

When a transport protocol segment arrives at a receiving system, the receiving system must determine which application is to receive the protocol segment. This decision is typically made by looking up a protocol control block (PCB) for the segment, based on information in the segment's header. PCB lookup (a form of demul-tiplexing) is typically one of the more expensive operations in handling i...

A receiver targeting OC-48 (2.488 Gb/s) serial data link has been designed and integrated in a 0.8m CMOS process. An experimental receiving front-end circuit demonstrates the viability of using multiple phased clocks to overcome the intrinsic gate-speed limitations in the demultiplexing (receiving) and multiplexing (transmitting) of serial data. To perform clock recovery, data is 3 oversampled ...

We propose and demonstrate silicon photonic integrated circuits (PICs) for free-space spatial-division-multiplexing (SDM) optical transmission with multiplexed orbital angular momentum (OAM) states over a topological charge range of -2 to +2. The silicon PIC fabricated using a CMOS-compatible process exploits tunable-phase arrayed waveguides with vertical grating couplers to achieve space divis...

The development of strategies for addressing arrays of nanoscale devices is central to the implementation of integrated nanosystems such as biological sensor arrays and nanocomputers. We report a general approach for addressing based on molecular-level modification of crossed semiconductor nanowire field-effect transistor (cNW-FET) arrays, where selective chemical modification of cross points i...

We describe the design, fabrication, and excellent performance of an optimized deep-etched high-density fused-silica transmission grating for use in dense wavelength division multiplexing (DWDM) systems. The fabricated optimized transmission grating exhibits an efficiency of 87.1% at a wavelength of 1550 nm. Inductively coupled plasma-etching technology was used to fabricate the grating. The de...