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 authors identify and discuss some fundamental physical mechanisms that will provide limits on the speed, power dissipation, and size of optical switching elements, and present a discussion of some potential applications of optical switches.
Abstract: In this paper we identify and discuss some fundamental physical mechanisms that will provide limits on the speed, power dissipation, and size of optical switching elements. Illustrative examples are drawn primarily from the field of bistable optical devices. We compare the limits for optical switching elements with those for other switching technologies, and present a discussion of some potential applications of optical switching devices. Although thermal effects will preclude their wide application in general-purpose computers, the potential speed and bandwidth capability of optical devices, and their capability for parallel processing of information, should lead to a number of significant applications for specific operations in communication and computing fields.
152 citations
Patent•
27 Aug 2004
TL;DR: In this paper, a microfabricated fluorescence activated cell sorter based on an optical switch for rapid, active control of cell routing through a microfluidic channel network is presented.
Abstract: Apparatus and Methods are provided for a microfabricated fluorescence activated cell sorter based on an optical switch for rapid, active control of cell routing through a microfluidic channel network. This sorter enables low-stress, highly efficient sorting of populations of small numbers of cells (i.e., 1000-100,000 cells). The invention includes packaging of the microfluidic channel network in a self-contained plastic cartridge that enables microfluidic channel network to macro-scale instrument interconnect, in a sterile, disposable format.
152 citations
06 Mar 2011
TL;DR: The architecture of modern datacenter networks, as well as their scaling challenges, are reviewed; then high-level requirements for deploying optical technologies in datacenters are presented, particularly focusing on optical circuit switching and WDM transceivers.
Abstract: We review the architecture of modern datacenter networks, as well as their scaling challenges; then present high-level requirements for deploying optical technologies in datacenters, particularly focusing on optical circuit switching and WDM transceivers.
151 citations
TL;DR: The proposed bandwidth squeezed restoration scheme takes advantage of elastic bandwidth variation in the optical paths of SLICE to enable spectrally efficient and highly survivable network recovery for best-effort traffic as well as bandwidth guaranteed traffic, while satisfying the service level specifications required from the client layer networks.
Abstract: With the continuing growth in the amount of backbone traffic, improving the cost-effectiveness and ensuring survivability of the underlying optical networks are very important problems facing network service providers today. In this paper, we propose a bandwidth squeezed restoration (BSR) scheme in our recently proposed spectrum-sliced elastic optical path network (SLICE). The proposed BSR takes advantage of elastic bandwidth variation in the optical paths of SLICE. It enables spectrally efficient and highly survivable network recovery for best-effort traffic as well as bandwidth guaranteed traffic, while satisfying the service level specifications required from the client layer networks. We discuss the necessary interworking architectures between the optical path layer and client layer in the BSR in SLICE. We also present a control framework that achieves flexible bandwidth assignment as well as BSR of optical paths in SLICE. Finally, we describe an implementation example of a control plane using generalized multi-protocol label switching (GMPLS).
151 citations
TL;DR: It is shown that multichannel digital transmission can be implemented on an ensemble of communicating molecules relying exclusively on the interplay of optical inputs and optical outputs.
Abstract: In present telecommunication networks, information transfer relies on the interplay of optical and electrical signals. Data are communicated optically but processed electronically. Methods to maintain the propagating signals solely at the optical level must be developed to overcome the transmission capacities and speed limits imposed by the electronic components. We have demonstrated that molecular switches can be used to gate optical signals in response to optical signals. We have realized a simple optical network consisting of three light sources, one cell containing a solution of three fluorescent molecules, one cell containing a solution of a three-state molecular switch and a detector. The light emitted by the three fluorophores is absorbed by the three states of the molecular switch. Using this simple operating principle, we have shown that multichannel digital transmission can be implemented on an ensemble of communicating molecules relying exclusively on the interplay of optical inputs and optical...
151 citations