Advances in integrated 2D MEMS-based solutions for optical network applications

Dobbelaere, P. De; Falta, K.; Gloeckner, S.

doi:10.1109/mcom.2003.1200101

Cited by 31 publications

(18 citation statements)

References 2 publications

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“…In the figure, there are W wavelengths (λ 1 , λ 2 , · · · , λ W ) on each fiber, the routing node consists of W independent photonic switching fabrics, each of them carrying its wavelength optical signal. In a reconfigurable OXC, especially in the MEMS (micro electro mechanical system)-based OXC with crossbar configuration, the optical data signals can be passed through the matrix without hitting a mirror [14] . Only when the cutthrough lightpath of a node is not selected by control plane, the switch fabrics of the node will be reconfigured.…”

Section: Distributed Wavelength Reservation With Swfsmentioning

confidence: 99%

Wavelength reservation scheme with switch fabric status in distributed mesh optical networks

Zeng

2009

J. Shanghai Jiaotong Univ. (Sci.)

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A new wavelength reservation scheme is proposed to mitigate the connection setup time and minimize the reconfiguration times of optical cross-connects (OXCs) for WDM optical networks in this study. In this scheme, we consider the reconfiguration information of switch fabrics in the signaling protocol, which is designated as the signaling with switch fabric status (SWFS). Distributed reservation algorithms will reserve the wavelength with minimum of reconfiguration times of OXCs along the route. Simulation results indicate that the proposed schemes with switch fabrics status have shorter setup time, lower switching ratio as well as better blocking performance than those of the traditional classic schemes. Moreover, the proposed schemes with SWFS significantly reduce the number of switch fabrics that need to be reconfigured.

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Section: Distributed Wavelength Reservation With Swfsmentioning

confidence: 99%

Wavelength reservation scheme with switch fabric status in distributed mesh optical networks

Zeng

2009

J. Shanghai Jiaotong Univ. (Sci.)

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“…Regardless of the specific technology used to OSFs, such as MEMS [2], [3], bubble switches [4], PLZT waveguides [5], broadcast-and-select [6] or AWG-based networks [6] with tunable devices, etc. a common feature is that, whenever the OSF configuration (input/output ports connections) is changed, a reconfiguration latency is required before communication takes place, due to the physical behaviors of devices.…”

Section: Introductionmentioning

confidence: 99%

Multi-hop scheduling algorithms in switches with reconfiguration latency

Alaria

Bianco

Giaccone

et al. 2006

2006 Workshop on High Performance Switching and Routing

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Optical switching fabrics (OSFs) are receiving increasing attention in the design of high speed packet switches, due to their excellent properties in terms of available bandwidth and reduced power consumption. However, most optical devices require a reconfiguration latency each time input/output switch port connections are modified. This latency may not be negligible with respect to the packet transmission time, and can adversely affect switch performance, creating high delays and reduced throughput.In this paper we consider OSFs and we propose a multi-hop approach to schedule packet transfer, i.e., packets are sent to the final destination port exploiting transmission through intermediate ports. We show that the multi-hop approach is a promising technique to control the trade-off between delay and throughput. We propose a general framework to solve the issue of multi-hop transmission in IQ packet switches. Furthermore, we examine the multi-hop approach when using logical interconnections among ports based on multi-dimensional regular topologies. We discuss the switch scheduling problem, and the design of routing and queueing schemes. Performance are analyzed both analytically and by simulation.

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“…The switching time of 2-D MEMS optical switches (the required time for establishing a connection between input-output ports) can be within 1 ms because simple control algorithms are used. In general, 2-D MEMS optical switches are more reliable, stable, and easily fabricated [7]. However, currently available 2-D MEMS optical switches have a rather small number of ports, e.g., N ≤ 32, because optical signals are transferred in free space inside MEMS optical switches.…”

Section: Introductionmentioning

confidence: 99%

Alternative structures for two-dimensional MEMS optical switches [Invited]

Wai

2004

J. Opt. Netw.

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Two-dimensional (2-D) microelectromechanical system (MEMS) optical switches have the merits of easy fabrication and high reliability. Since the optical signal loss is mainly proportional to the length of signaling paths in the switches, current 2-D MEMS optical switches that use a crossbar structure have a rather limited number of ports. For larger 2-D MEMS optical switches, we may use nonrectangular topology switching fabrics to shorten the internal signaling path or to recollimate the optical signal segment by segment inside the switches. We discuss these approaches from the aspect of implementation and routing control complexity.

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Advances in integrated 2D MEMS-based solutions for optical network applications

Cited by 31 publications

References 2 publications

Wavelength reservation scheme with switch fabric status in distributed mesh optical networks

Wavelength reservation scheme with switch fabric status in distributed mesh optical networks

Multi-hop scheduling algorithms in switches with reconfiguration latency

Alternative structures for two-dimensional MEMS optical switches [Invited]

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