Photonic front-end processor in a WDM ATM multicast switch

H. J. Chao; L. Wu; Z. Zhang; S. H. Yang; L. M. Wang; Y. Chai; J. Y. Fan; F. S. Choa

doi:10.1109/50.827497

Photonic front-end processor in a WDM ATM multicast switch

H. J. Chao, L. Wu, Z. Zhang, S. H. Yang, L. M. Wang, Y. Chai, J. Y. Fan, F. S. Choa

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Dense wavelength-division multiplexing (DWDM) technology has provided tremendous transmission capacity in optical fiber communications. However, switching and routing capacity is still far behind transmission capacity. This is because most of today's packet switches and routers are implemented using electronic technologies. Optical packet switches are the potential candidate to boost switching capacity to be comparable with transmission capacity. In this paper, we present a photonic asynchronous transfer mode (ATM) front-end processor that has been implemented and is to be used in an optically transparent WDM ATM Multicast (3M) switch. We have successfully demonstrate the front-end processor in two different experiments. One performs cell delineation based on ITU standards and overwrites VCI/VPI optically at 2.5 Gb/s. The other performs cell synchronization, where cells from different input ports running at 2.5 Gb/s are phase-aligned in the optical domain before they are routed in the switch fabric. The resolution of alignment is achieved to the extent of 100 ps (or 1/4 bit). An integrated 1×2 Y-junction semiconductor optical amplifier (SOA) switch has been developed to facilitate the cell synchronizer.

Original language	English (US)
Pages (from-to)	273-285
Number of pages	13
Journal	Journal of Lightwave Technology
Volume	18
Issue number	3
DOIs	https://doi.org/10.1109/50.827497
State	Published - Mar 2000

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1109/50.827497

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title = "Photonic front-end processor in a WDM ATM multicast switch",

abstract = "Dense wavelength-division multiplexing (DWDM) technology has provided tremendous transmission capacity in optical fiber communications. However, switching and routing capacity is still far behind transmission capacity. This is because most of today's packet switches and routers are implemented using electronic technologies. Optical packet switches are the potential candidate to boost switching capacity to be comparable with transmission capacity. In this paper, we present a photonic asynchronous transfer mode (ATM) front-end processor that has been implemented and is to be used in an optically transparent WDM ATM Multicast (3M) switch. We have successfully demonstrate the front-end processor in two different experiments. One performs cell delineation based on ITU standards and overwrites VCI/VPI optically at 2.5 Gb/s. The other performs cell synchronization, where cells from different input ports running at 2.5 Gb/s are phase-aligned in the optical domain before they are routed in the switch fabric. The resolution of alignment is achieved to the extent of 100 ps (or 1/4 bit). An integrated 1×2 Y-junction semiconductor optical amplifier (SOA) switch has been developed to facilitate the cell synchronizer.",

author = "Chao, {H. J.} and L. Wu and Z. Zhang and Yang, {S. H.} and Wang, {L. M.} and Y. Chai and Fan, {J. Y.} and Choa, {F. S.}",

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AU - Chao, H. J.

AU - Wu, L.

AU - Zhang, Z.

AU - Yang, S. H.

AU - Wang, L. M.

AU - Chai, Y.

AU - Fan, J. Y.

AU - Choa, F. S.

PY - 2000/3

Y1 - 2000/3

N2 - Dense wavelength-division multiplexing (DWDM) technology has provided tremendous transmission capacity in optical fiber communications. However, switching and routing capacity is still far behind transmission capacity. This is because most of today's packet switches and routers are implemented using electronic technologies. Optical packet switches are the potential candidate to boost switching capacity to be comparable with transmission capacity. In this paper, we present a photonic asynchronous transfer mode (ATM) front-end processor that has been implemented and is to be used in an optically transparent WDM ATM Multicast (3M) switch. We have successfully demonstrate the front-end processor in two different experiments. One performs cell delineation based on ITU standards and overwrites VCI/VPI optically at 2.5 Gb/s. The other performs cell synchronization, where cells from different input ports running at 2.5 Gb/s are phase-aligned in the optical domain before they are routed in the switch fabric. The resolution of alignment is achieved to the extent of 100 ps (or 1/4 bit). An integrated 1×2 Y-junction semiconductor optical amplifier (SOA) switch has been developed to facilitate the cell synchronizer.

AB - Dense wavelength-division multiplexing (DWDM) technology has provided tremendous transmission capacity in optical fiber communications. However, switching and routing capacity is still far behind transmission capacity. This is because most of today's packet switches and routers are implemented using electronic technologies. Optical packet switches are the potential candidate to boost switching capacity to be comparable with transmission capacity. In this paper, we present a photonic asynchronous transfer mode (ATM) front-end processor that has been implemented and is to be used in an optically transparent WDM ATM Multicast (3M) switch. We have successfully demonstrate the front-end processor in two different experiments. One performs cell delineation based on ITU standards and overwrites VCI/VPI optically at 2.5 Gb/s. The other performs cell synchronization, where cells from different input ports running at 2.5 Gb/s are phase-aligned in the optical domain before they are routed in the switch fabric. The resolution of alignment is achieved to the extent of 100 ps (or 1/4 bit). An integrated 1×2 Y-junction semiconductor optical amplifier (SOA) switch has been developed to facilitate the cell synchronizer.

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Photonic front-end processor in a WDM ATM multicast switch

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