Wavelength-selective 1/spl times/4 switch for 128 WDM channels at 50 GHz spacing

Marom, Dan M.; Neilson, David T.; Greywall, Dennis S.; Basavanhally, N.R.; Kolodner, Paul; Low, Y.L.; Pardo, F.; Bolle, C.; Chandrasekhar, S.; Buhl, L. L.; Giles, C.R.; Oh, Sang‐Hyun; Pai, C. S.; Werder, K.; Soh, H. Tom; Bogart, Gregory R.; Ferry, E.; Klemens, F.; Teffeau, K.; Miner, J.F.; Rogers, Stanley; Bower, J. E.; Keller, Robert C.; Mansfield, William

doi:10.1109/ofc.2002.1036767

Cited by 44 publications

(22 citation statements)

References 7 publications

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“…3D MEMS switches are attractive due to their high functionality and low optical insertion loss and crosstalk [57]. The WSS (Wavelength Selective Switch) [58], [59], which was originally proposed as the Delivery and Coupling Switch (DC-SW) [60]- [62] in 1993 as described below, uses 3D MEMS switches, and is going to be utilized to develop ROADMs for applications in metropolitan area networks. Since the micro mirrors must be controlled in three dimensions and require extreme assembly and operation precision; reliability of large scale 3D MEMS switches in various conditions must be verified in more detail.…”

Section: Relaxation-based Methodsmentioning

confidence: 99%

Prospects and Challenges of Multi-Layer Optical Networks

Sato¹,

Hasegawa²

2007

IEICE Transactions on Communications

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SUMMARYThis paper investigates the prospects and challenges of hierarchical optical path networks. The merits and issues of introducing higher order optical paths are elucidated. State of the art of the key enabling technologies are demonstrated including hierarchical optical cross-connect switch architectures, hierarchical optical path network design algorithms, a newly developed waveband filter, and waveband conversion technologies.

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Section: Relaxation-based Methodsmentioning

confidence: 99%

Prospects and Challenges of Multi-Layer Optical Networks

Sato¹,

Hasegawa²

2007

IEICE Transactions on Communications

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“…2 ϫ 2 WSS [22], blockers (or 1 ϫ 1 WSS) [37,51], and higher port count WSS [14,33,34,42,43,44] have been shown. The first examples of wavelength routing using free space and MEMS were simple 2 ϫ 2 WSS devices demonstrated by Ford [22].…”

Section: Demonstrated Functionalitymentioning

confidence: 99%

“…With such an array, in fact it would be possible not only to control the passband shape, but also to control the in band group delay curve, thus opening a realm of new transmission mitigation capability for higher order linear impairments [70]. channels has been confirmed in a 128-channel count switch, with 4 output ports, operating on 50 GHz channel separation with bandwidth sufficient to support 10 Gb/s data rates [43,44]. The switch exhibited wide and flat passband widths, in support of core optical networking specifications for cascading switches.…”

Section: Demonstrated Functionalitymentioning

confidence: 99%

Wavelength selective switching for optical bandwidth management

Neilson¹,

Doerr²,

Marom³

et al. 2006

Bell Labs Tech. J.

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“…Examples of applications include: accurate tuning of wavelength division multiplexing (WDM) systems [3], active wavelength selection in optical routers [4] and reconfigurable optical add/drop multiplexers (ROADM) [5], broadband switches [6], and tunable lasers [7], among others. Most of these applications require small and tightly spaced rings with sharp resonances (high Q) and a long distance between adjacent resonances (large free spectral range, FSR) in order to address a large number of optical channels.…”

Section: Introductionmentioning

confidence: 99%