Reprogrammable optical phase array.

The Roles of FPGAs in Reprogrammable Systems

FPGA-based reprogrammable systems are revolutionizing some forms of computation and digital logic. As a logic emulation system they provide orders of magnitude speedup over software simulation. As a custom-computing machine they achieve the highest performance implementation for many types of applications. As a multi-mode system they yield significant hardware savings and provide truly generic ...

Analytical Study of Optical Bi-Stability of a Single-Bus Resonator Based on InGaAs Micro-Ring Array

In this paper, for the first time to our knowledge, we investigate the optical bi-stability in a compact parallel array of micro- ring resonators with 5μm radius, induced by optical nonlinearity. Due to the nature of perfect light confinement, resonance and accumulation process in a ring resonator, optical nonlinear effects, even at small optical power of a few milliwatts in this structure are ...

Using Reprogrammable Gate Arrays in Performance-Critical Designs

We describe our experiences with using reprogrammable gate arrays in performance-critical digital systems. Our experience indicates that RPGAs are easily integrated into the classroom, but are not yet sufficiently mature to permit comparable integration into a research environment. While reprogrammable gate arrays offer the potential for reduced area and chip count, routing and interconnect iss...

Suitability of reprogrammable FPGAs in space applications

TRIPTYCH: A New FPGA Architecture

Existing FPGA architectures can be classified along two dimensions: reprogrammable vs. one-time programmable and general-purpose vs. domain specific. The most challenging class of FPGA architectures to design is the reprogrammable, general-purpose FPGA, of which Xilinx is the most wellknown example. In this paper we describe Triptych, a new FPGA architecture that addresses two problems of curre...