ROADM subsystems and technologies

Keyworth, B.P.

doi:10.1109/ofc.2005.192706

Cited by 46 publications

(22 citation statements)

References 2 publications

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“…Here n 1×N switches are needed for a 1×N WSS with n channels. For degree-N connectivity in a ring-to-ring interconnect a 1×N WSS can be used either, adding/dropping channels as a ROADM with one Express port and N-1 Drop the ports [14].To vary the fiber connectivity between the transceiver and networks access ports for a given direction and colorless, directionless realizations extra WSS's were deployed [15]. Optical Cross-ConnectOptical Cross-Connects (OXC) is one of the key network elements in the optical layer.…”

Section: Wavelength Selective Switches (Wss)-mentioning

confidence: 99%

Reconfigurable Optical Add and Drop Multiplexers A Review

Tripathi¹,

Singh²,

N.K³

et al. 2014

ECIJ

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Section: Wavelength Selective Switches (Wss)-mentioning

confidence: 99%

Reconfigurable Optical Add and Drop Multiplexers A Review

Tripathi¹,

Singh²,

N.K³

et al. 2014

ECIJ

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“…(Mezhoudi et al, 2006) significantly reduce the cost. In (Keyworth, 2005) the author describes the available technology options, and corresponding subsystem features, while highlighting the key advantages and implementation challenges associated with each of them. ROADM subsystems can be implemented using a variety of architectures and technologies, each with their own trade-offs in performance and functionality.…”

Section: Previous Workmentioning

confidence: 99%

A Comparative Study of Node Architectures with Add/Drop Constraints in WDM Networks

Manousakis¹,

Varvarigos²

2012

Optical Fiber Communications and Devices

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“…The ROADM is the current promising solution for further increasing the traffic capacity of telecommunication systems [12]. In this type of network, adding or dropping a wavelength for…”

Section: Introductionmentioning

confidence: 99%

LCoS SLM Study and Its Application in Wavelength Selective Switch

et al. 2017

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Abstract:The Liquid-Crystal on Silicon (LCoS) spatial light modulator (SLM) has been used in wavelength selective switch (WSS) systems since the 1990s. However, most of the LCoS devices used for WSS systems have a pixel size larger than 6 µm. Although there are some negative physical effects related to smaller pixel sizes, the benefits of more available ports, larger spatial bandwidth, improved resolution, and the compactness of the whole system make the latest generation LCoS microdisplays highly appealing as the core component in WSS systems. In this review work, three specifications of the WSS system including response time, crosstalk and insertion loss, and optimization directions are discussed. With respect to response time, the achievements of liquid crystal material are briefly surveyed. For the study of crosstalk and insertion loss, related physical effects and their relation to the crosstalk or insertion loss are discussed in detail, preliminary experimental study for these physical effects based on a small pixel LCoS SLM device (GAEA device, provided by Holoeye, 3.74 µm pixel pitch, 10 megapixel resolution, telecom) is first performed, which helps with predicting and optimizing the performance of a WSS system with a small pixel size SLM. In the last part, the trend of LCoS devices for future WSS modules is discussed based on the performance of the GAEA device. Tradeoffs between multiple factors are illustrated. In this work, we present the first study, to our knowledge, of the possible application of a small pixel sized SLM as a switching component in a WSS system.

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ROADM subsystems and technologies

Cited by 46 publications

References 2 publications

Reconfigurable Optical Add and Drop Multiplexers A Review

Reconfigurable Optical Add and Drop Multiplexers A Review

A Comparative Study of Node Architectures with Add/Drop Constraints in WDM Networks

LCoS SLM Study and Its Application in Wavelength Selective Switch

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