Optical switch

About: Optical switch is a research topic. Over the lifetime, 28538 publications have been published within this topic receiving 351176 citations.

Display device having a movable structure for modulating light and method thereof

Abstract: An interference modulator (Imod) incorporates anti-reflection coatings and/or micro-fabricated supplemental lighting sources. An efficient drive scheme is provided for matrix addressed arrays of IMods or other micromechanical devices. An improved color scheme provides greater flexibility. Electronic hardware can be field reconfigured to accommodate different display formats and/or application functions. An IMod's electromechanical behavior can be decoupled from its optical behavior. An improved actuation means is provided, some one of which may be hidden from view. An IMod or IMod array is fabricated and used in conjunction with a MEMS switch or switch array. An IMod can be used for optical switching and modulation. Some IMods incorporate 2-D and 3-D photonic structures. A variety of applications for the modulation of light are discussed. A MEMS manufacturing and packaging approach is provided based on a continuous web fed process. IMods can be used as test structures for the evaluation of residual stress in deposited materials.

Photonic chip based ultrafast optical processing based on high nonlinearity dispersion engineered chalcogenide waveguides

Abstract: Progress in developing photonic chip based optical processing devices with ultrahigh-bandwidth is reviewed. The unprecedented processing bandwidth of our platform based on dispersion engineered chalcogenide waveguides is exploited to perform Tbaud optical switching and performance monitoring. Recent experiments and demonstrations of photonic logic operations are reviewed. Progress in developing photonic chip based optical processing devices with ultrahigh-bandwidth is reviewed. The unprecedented processing bandwidth of our platform based on dispersion engineered chalcogenide waveguides is exploited to perform Tbaud optical switching and performance monitoring. Recent experiments and demonstrations of photonic logic operations are reviewed

Bit-error-ratio improvement with 2R optical regenerators

Abstract: We show that an all-optical optical regenerator can improve the bit-error ratio (BER) of a signal passing through it only if the regenerator has different power transfer functions for the logical ones and logical zeros. A regenerator that operates with a single transfer function-which constitute most of optical regenerators reported in the literature-cannot improve the BER, but can only reduce the BER degradation when, for example, placed before optical amplifiers. Of all the optical regenerators reported to date, only the one proposed by Mamyshev, based on filtering a self-phase modulated signal, has different transfer functions for the logical ones and the logical zeros. This makes the Mamyshev scheme a superior candidate for ultrahigh-speed all-optical regeneration.

A Multiport Microsecond Optical Circuit Switch for Data Center Networking

Abstract: We experimentally evaluate the network-level switching time of a functional 23-host prototype hybrid optical circuit-switched/electrical packet-switched network for datacenters called Mordia (Microsecond Optical Research Datacenter Interconnect Architecture). This hybrid network uses a standard electrical packet switch and an optical circuit-switched architecture based on a wavelength-selective switch that has a measured mean port-to-port network reconfiguration time of 11.5 $\mu{\rm s}$ including the signal acquisition by the network interface card. Using multiple parallel rings, we show that this architecture can scale to support the large bisection bandwidth required for future datacenters.

Novel Glassy Nematic Liquid Crystals for Non-destructive Rewritable Optical Memory and Photonic Switching

Abstract: OAK B204 Novel Glassy Nematic Liquid Crystals for Non-destructive Rewritable Optical Memory and Photonic Switching