Topic
Optical switch
About: Optical switch is a research topic. Over the lifetime, 28538 publications have been published within this topic receiving 351176 citations.
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TL;DR: In this article, the fundamental working equations required to describe the associated power transfer are derived and the application of this geometry to a variety of optical phenomena including add/dropping of optical beams, add/drop filtering and optical power switching are discussed.
Abstract: The most basic and generic configuration, which consists of a unidirectional coupling between a ring resonator and a waveguide, is considered. The fundamental working equations required to describe the associated power transfer are derived and the application of this geometry to a variety of optical phenomena is discussed. These phenomena include 'add/dropping' of optical beams, add/drop filtering and optical power switching.
1,108 citations
30 Aug 2010
TL;DR: This work presents Helios, a hybrid electrical/optical switch architecture that can deliver significant reductions in the number of switching elements, cabling, cost, and power consumption relative to recently proposed data center network architectures.
Abstract: The basic building block of ever larger data centers has shifted from a rack to a modular container with hundreds or even thousands of servers. Delivering scalable bandwidth among such containers is a challenge. A number of recent efforts promise full bisection bandwidth between all servers, though with significant cost, complexity, and power consumption. We present Helios, a hybrid electrical/optical switch architecture that can deliver significant reductions in the number of switching elements, cabling, cost, and power consumption relative to recently proposed data center network architectures. We explore architectural trade offs and challenges associated with realizing these benefits through the evaluation of a fully functional Helios prototype.
1,045 citations
TL;DR: A nonlinear device based on the nonlinear propagation in a waveguide loop formed by connecting the output ports of a conventional coupler is proposed and has the ability to operate on entire pulses when soliton effects are included.
Abstract: A nonlinear device for ultrafast processing is proposed. This device is based on the nonlinear propagation in a waveguide loop formed by connecting the output ports of a conventional coupler. The device is shown to have potentially useful characteristics for unequal coupling ratios and has the ability to operate on entire pulses when soliton effects are included.
1,006 citations
TL;DR: In this article, the noise and bit-error-rate characteristics of fiber-optic communication systems using semiconductor laser amplifiers are investigated theoretically and experimentally, and the dependence of system performance on amplifier characteristics such as optical bandwidth, noise figure, gain, etc., is shown.
Abstract: Fiber-optic communication systems using semiconductor laser amplifiers are investigated theoretically and experimentally. The noise and bit-error-rate characteristics of lightwave systems with optical amplifiers are calculated and the dependence of system performance on amplifier characteristics such as optical bandwidth, noise figure, gain, etc., is shown. Experimental results for both a 4-Gb/s optical preamplifier as well as coherent and direct detection systems with four inline amplifiers are presented. >
899 citations
TL;DR: The nonlinear coherent coupler (NLCC) as mentioned in this paper is a device useful for optical processing, but not bistable, which utilizes the coherent interaction of two optical waveguides placed in close proximity.
Abstract: This paper discusses the nonlinear coherent coupler (NLCC), a device useful for optical processing, but not bistable. This device utilizes the coherent interaction of two optical waveguides placed in close proximity. Because of the evanescent field overlap, these waveguides periodically exchange power. Nonlinear interactions modify the exchange of power and lead to strongly nonlinear transmission characteristics.
839 citations