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: Vanadium dioxide films for optical switching applications were prepared on Si 3 N 4 -film-coated silica substrates by ion beam sputtering from a vanadium metal target in an atmosphere of argon and oxygen and subsequent heat treatment as mentioned in this paper.
71 citations
TL;DR: A review is presented of electrooptic waveguide switch arrays with strong emphasis on those based on titanium-diffused lithium niobate waveguides, as well as experimental demonstrations of switch arrays achieved by several laboratories.
Abstract: A review is presented of electrooptic waveguide switch arrays with strong emphasis on those based on titanium-diffused lithium niobate waveguides. Crosspoint and array design considerations and performance are discussed as are waveguide technology limits. Switch array demonstrations are reviewed. Experimental demonstrations of switch arrays are described and particular parameters of the array, including insertion loss, crosstalk, and switching voltage achieved by several laboratories, are discussed and compared. Results of high-speed switch arrays are also described. >
71 citations
23 Mar 2003
TL;DR: In this article, the authors evaluate whether burst assembly in edge nodes of optical burst switching (OBS) networks reduces self-similarity of traffic, and they show that in most cases, selfsimilarity remains unchanged.
Abstract: Recently, the question has been heavily discussed whether burst assembly in edge nodes of optical burst switching (OBS) networks reduces self-similarity of traffic. Our performance evaluation by analysis and simulation shows that in most cases self-similarity remains unchanged.
70 citations
07 Mar 2000
TL;DR: In this article, the authors proposed a 32/spl times/32-size switch matrices with transmission losses of 0.07 dB per crosspoint, crosstalk of /spl sim/70 dB per point, and switching times of 1 msec.
Abstract: Optical cross-connect switch matrices have demonstrated transmission losses of 0.07 dB per crosspoint, crosstalk of /spl sim/70 dB per crosspoint and switching times of 1 msec. We now have the technology to produce 32/spl times/32-size matrices.
70 citations
TL;DR: An implementation of optical differential 8-level phase-shift keying (OD8PSK) is proposed for spectrally efficient high capacity long-haul optical fiber transmission systems.
Abstract: Efficient systems, devices, apparatus and methods to generate, transmit and detect differentially encoded 8-level phase-modulated optical signals for spectrally efficient optical communication systems is invented. It includes an electrical encoder and an optical encoder for generation of differentially encoded 8-level phase-modulated optical signals and optical demodulators and balanced detectors for detection of the optical signals. The optical signals are transmitted through optical fiber links or air. The electrical encoder maps three independent data channels into three differentially-encoded data sequences. In the optical encoder, the encoded data sequences from the electrical encoder drive optical modulators to generate differentially-encoded 8-level phase modulated optical signals at a symbol rate equal to the bit rate of each input data channel. After transmission through optical fiber, the optical signals are demodulated optically and the original data are recovered by the balanced detectors with direct detection.
70 citations