نتایج جستجو برای: optical switch

تعداد نتایج: 323433  

Journal: :journal of modern processes in manufacturing and production 2015
mohammad goodarzi

in this paper, a robust pid control scheme is proposed for micro-electro-mechanical-systems(mems) optical switches. the proposed approach is designed in a way which solves twochallenging and important problems. the first one is successful reference tracking and the second ismitigating the system nonlinearities. the overall system composed of nonlinear mems dynamicsand the pid controller is prov...

Journal: :CoRR 2010
Ahmed Galib Reza Tan Saw Chin Fouad Mohammed Abbou

This paper proposes a two-stage optical packet switch with second stage of recirculate switch of FDL to reduce the number of the FDL used in the switch for contention resolution. The contention resolution scheme with priority in packet releasing from FDL is tested in the two-stage switch for performance evaluation. Simulation result shows that zero packet loss rate achievable with < 0.8 for 32x...

Journal: :Optical Switching and Networking 2012
Kazumasa Tokuhashi Kunitaka Ashizawa Daisuke Ishii Satoru Okamoto Naoaki Yamanaka Koji Wakayama Keiichi Nashimoto

An active optical access network architecture with our newly developed PLZT ((Pb, La) (Zr, Ti)O3) high-speed optical switch is introduced, with a view to realizing the nextgeneration high capacity scalable access network. This system is developed based on the latest IEEE standard of PON (10G-EPON; IEEE802.3av) in consideration of the coordination with future high capacity PON. PLZT high-speed o...

1992
E Cornfeld R Carlson S Dean J Huynh Proctor T Ho K Pande F Phelleps J Singer P Rice J Adair M Ghahremani Hercules H Vang R M Herman K W Angel Chao

Watt three-stage Q-band MESFET monolithic power amplifier'. Fig. 1 Packerpipping scheme for packet synchronisation Within this frame, however, the packet may Hoat. If such traffic is presented to an all-optical packet switch with slot size equal to the frame size (i.e. with twice as long slot size), the switch preserves the 'one packet per frame' rule. However, if this traffic coming from the o...

2002
Razali Ngah Zabih Ghassemlooy Graham Swift Tahir Ahmad Peter Ball

Photonic packet switches can offer high data rates and format transparency as required by future communication system. Although electronic technology can achieve high switching speed, it is not compatible with the transmission bandwidths of the fiber-optic links. This paper is concerned with alloptical time division multiplexing router based on all-optical switching device. Three terahertz opti...

2006
Bin Wu Kwan L. Yeung

A hybrid electronic/optical packet switch consists of electronically buffered line-cards interconnected by an optical switch fabric. It provides a scalable switch architecture for next generation high-speed routers. Due to the non-negligible switch reconfiguration overhead, many packet scheduling algorithms are invented to ensure performance guaranteed switching (i.e. 100% throughput with bound...

2015
Sangyoon Han Ming C. Wu Liwei Lin

Fast optical circuit switches with large port count will allow flexible bandwidth allocation in datacenter networks by augmenting electrical packet switching. Reported herein is the development of a microsecond-speed optical circuit switch with 50×50 port counts implemented on silicon photonics platform using MEMS-actuated directional couplers. The switch contains a number of innovative enhance...

2011
Anne E. B. Nielsen Joseph Kerckhoff

We propose an all-optical switch constructed from a two-mode optical resonator containing a strongly coupled, three-state system. The coupling allows a weak laser drive to incoherently control the transmission of a much stronger signal laser into (and through) the resonator. We demonstrate that in this simple setup the presence of a control drive with 1/10 the power of the signal drive can indu...

2018
G. Mourgias-Alexandris M. Moralis-Pegios N. Terzenidis M. Cherchi M. Harjanne T. Aalto K. Vyrsokinos N. Pleros

The urgent need for high-bandwidth and high-port connectivity in Data Centers has boosted the deployment of optoelectronic packet switches towards bringing high data-rate optics closer to the ASIC, realizing optical transceiver functions directly at the ASIC package for high-rate, low-energy and low-latency interconnects. Even though optics can offer a broad range of low-energy integrated switc...

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