A compact, scalable cross-connect switch using total internal reflection due to thermally-generated bubbles

Fouquet, J.E.; Venkatesh, S.; Troll, Mark; Chen, D.; Wong, H.; Barth, P.W.

doi:10.1109/leos.1998.739515

Cited by 29 publications

(32 citation statements)

References 1 publication

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“…One may envisage electronic switching matrix for wavelength switching (WXC) , with opto-electronic interfaces. A lot of optical technologies are also available to do the wavelength-switching ( [4][5][6] for several wavelength switching technologies). For the band (BXC) and fibre (FXC) switching, electronic cannot do it, only optical technologies can.…”

Section: Required Technologiesmentioning

confidence: 99%

“…This ability to switch everything from a single wavelength to a whole fibre mUltiplex is interesting on the up-gradability point of view: the same matrix technology firstly switches wavelengths when the traffic through the OXC is low (-1 Tbitls), it can switch bands when the traffic begins to increase (-10 Tbitls), and it will be able to switch fibres later when the traffic becomes very high (-100 Tbit/s). Some possible technologies are the MicroElectroMechanical System technology (MEMS, see for example [5]), system based on index-matching injection (see for example [6]) or bulk optomechanical free-space switches (see [4] for instance).…”

Section: Required Technologiesmentioning

confidence: 99%

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Multi-Granularity Optical Networks

Blaizot¹,

Dotaro²,

Noirie³

et al. 2001

IFIP Advances in Information and Communication Technology

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Considering the telecommunication traffic boom, one can wonder if routing nodes will provide the corresponding switching capacity. Introducing Multi-Granularity Optical Networks concept, this paper gives a cost-effective solution. First, a MG-OXC architecture is proposed, then the "natural" distribution of the traffic among the granularities is presented. Finally, a Multi-Granularity planning process is described. Based on the most advantageous feature of optical technologies, the proposed approach solves the switching matrix size limitation.

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Section: Required Technologiesmentioning

confidence: 99%

Section: Required Technologiesmentioning

confidence: 99%

Multi-Granularity Optical Networks

Blaizot¹,

Dotaro²,

Noirie³

et al. 2001

IFIP Advances in Information and Communication Technology

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show abstract

“…the optical switch fabric needs time to change its interconnection pattern, and this time varies from 10 ns to several milliseconds depending on the switching technology adopted [1]- [4]. Second, time (10-20 ns or more [5]) is required to resynchronize the optical transceivers and the switch fabric.…”

mentioning

confidence: 99%

“…Combining reconfiguration overhead and configuration holding time, Stage 3 requires regular slots. To ensure 100% throughput, the speedup must satisfy (1) Rearranging (1), we have the minimum required speedup as …”

mentioning

confidence: 99%

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Minimum Delay Scheduling for Performance Guaranteed Switches With Optical Fabrics

Wu¹,

Yeung²,

et al. 2009

J. Lightwave Technol.

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Abstract-We consider traffic scheduling in performance guaranteed switches with optical fabrics to ensure 100% throughput and bounded packet delay. Each switch reconfiguration consumes a constant period of time called reconfiguration overhead, during which no packet can be transmitted across the switch. To minimize the packet delay bound for an arbitrary traffic matrix, the number of switch configurations in the schedule should be no larger than the switch size . This is called minimum delay scheduling, where the ideal minimum packet delay bound is determined solely by the total overhead of the switch reconfigurations. A speedup in the switch determines the actual packet delay bound, which decreases toward the ideal bound as the speedup increases. Our objective is to minimize the required speedup schedule under a given actual packet delay bound. We propose a novel minimum delay scheduling algorithm quasi largest-entry-first (QLEF) to solve this problem. Compared with the existing minimum delay scheduling algorithms MIN and -SCALE, QLEF dramatically cuts down the required schedule bound. For example, QLEF only requires schedule = 17 89 for = 450, whereas MIN and -SCALE require schedule = 37 13 and 27.82, respectively. This gives a significant performance gain of 52% over MIN and 36% over -SCALE.

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Other Optical Switching Technologies

El-Bawab¹

Optical Switching

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A compact, scalable cross-connect switch using total internal reflection due to thermally-generated bubbles

Cited by 29 publications

References 1 publication

Multi-Granularity Optical Networks

Multi-Granularity Optical Networks

Minimum Delay Scheduling for Performance Guaranteed Switches With Optical Fabrics

Other Optical Switching Technologies

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