Roadm and wavelength selective switches viavi solutions. Wavelengthselective functions enable tunable optical. Wavelength selective switching components are used in wdm optical communications. Mar 10, 2015 this new metro architectural option comes in the form of cienas new wavelogic photonics coherent select. M wavelength selective switch device that would help in reducing the architectural complexity of the roadm nodes.
The wsxc is vital to the implementation of wavelength routing and will enable service providers to maintain services dynamically and to migrate to transparent network architectures. Effects of architectureselection switches intel software. Trueflex twin high port count wavelength selective switch twin wss the trueflex twin wss enables the introduction of colorless and directionless wavelength adddrop at optical network nodes. Wavelength selective switch wss with a mems mirror array. Through a twostage beamsteering process, wavelength channels from any input optical fiber port can be switched into any output optical fiber port. Modeling the effect of wavelength selective switch latency on. In conference on optical fiber communication, technical digest series vol. Application note wavelength selective switching in optical. Wavelengthselective switch with direct few mode fiber. Wavelengthselective switching is generally considered to be an essential element for building agile all optical mesh telecommunications networks.
Matrix optical switches enable wavelengthselective. Using available matrixbased optical switches, equipment manufacturers are constructing wavelengthselective crossconnects wsxcs for a future generation of alloptical networks. The user can dynamically drop any wavelength to any port and then seamlessly change drop capacity on an as needed basis. The trends, architecture, and performance of wavelengthselective switches wss are analyzed in the context of their application to reconfigurable optical adddrop multiplexer roadmbased. Wavelength selective switch wss an active component that performs the actual wavelength switching. Wavelength management is also enhanced by balancing discrete wavelength power.
Along with ability to support traffic in network nodes requiring greater than 2 dimensions, optical switching solution provides colorless routing and switching, or ability to direct wavelengths in. A high port count instantiated wavelength selective switch comprising two or more discrete sets, or instances, of m fiber ports totaling n fiber ports copackaged together, one or more shared optical elements and dispersive elements, and one or more steering elements in each instance. This class of designs built with a combination of microringbased channelselectors and combaggregators completely. Nielson, dilan seneviratne, francisco lopezroyo, peter t. The freespace optics fmfwss dynamically steers spectral informationbearing beams containing three spatial modes from an input port to one of nine output ports using a phase spatial light modulator. Wavelengthselective switch lumentum operations llc new. What is wss wavelength selective switch in fiber optics. Optical switch aids in dwdm network traffic management. Verification and yield out due to tighter tolerances on channel drop, crosstalk. A hybrid wdmtdm pon architecture using wavelength selective. Wavelengthselective switches for modedivision multiplexing. Pdf wavelengthselective switches for roadm applications.
Wss has become the central heart of modern dwdm reconfigurable agile optical network aoc. It supports a conventional broadcastandselect roadm architecture. May 10, 2010 this growth has been enabled, in part, because of advances in two key optical components. The powerrouter pr0200 wavelength selective switch wss can be remotely configured to drop any channel, or combination of channels, to any one of four ports, or in reverse to multiplex any combination of wavelengths from four ports into the ongoing dwdm stream. Wavelength selective switch market 2019 global industry. Early tuneable lasers were bulky, expensive, and had poorer performance than the fixed wavelength devices they were meant to replace. Wavelength selective switch wss craig, thanks for the note, im a fan. Wavelength management, roadms, wss and amplifiers finisar. Wavelength selective switching components are used in wdm optical communications networks to route signals between optical fibres on a perwavelength basis. Therefore, the application of 5g will lead to the rapid expansion of the wss market in the future. Cisco training on demand provides you with a proven, costeffective alternative to instructorled training via a comprehensive library of highdefinition video lectures available on a 12month subscription basis. Coherent select is a new 100g200g optical broadcast architecture that uses passive optical units to create a wavelength broadcast and select infrastructure that does not require wavelength selective switches wss or optical filters. This page explains basics of wss used in fiber optical domain. Mems based wavelength selective optical switching for.
Integrated wavelength selective switch wss, edfa amplifier, optical channel monitoring, and auto power balancing delivering small footprint, optimized roadm solution. Software control allows the wss to be configured for 1xn connectivity to multiple. Sep 25, 2018 the trueflex twin 8x24 contentionless mxn wavelength selective switch filters out wideband noise on transmitters and receivers. Then these waves are fed to this banyan architecture switch which performs the wavelength selective switching. To optimise the design of a wavelength selective switch based on a phaseonly liquid crystal on silicon spatial light modulator and mitigate crosstalk, we propose using a technique referred to as. Boosting optical network flexibility with advanced photonics. Four wavelength protection groups can be provisioned on one module.
Aug 17, 2015 ntt microsystem integration laboratories 2009 this feature is not available right now. Ho et al, wavelengthselective switches for modedivision multiplexing 1 abstractwavelengthselective switches for modedivisionmultiplexing systems are designed by scaling switches from singlemode systems. Baxter, simon poole, and steve frisken finisar australia, 244 young st. A model for characterizing the spectral response of the. Eliminating the need for edfa, the switch improves density, reliability and power efficiency. A highly flexible, stacked, switch module is proposed, wherein multiple independent 1. Wss can dynamically route, block and attenuate all dwdm wavelengths within a network node.
Because every wavelength in the 1xn switch can be switched to any one of the n output ports, this switch can be used in a fully flexible oadm optical add drop multiplexer with multiple adddrop fiber ports, each of which carries single or multiple wavelengths. Spectral modeling of channel band shapes in wavelength selective switches cibby pulikkaseril, luke a. To study and analyze the global wavelength selective switch consumption value and volume by key regionscountries, product type and application. Us7769255b2 high port count instantiated wavelength. This class of designs built with a combination of microringbased channelselectors and combaggregators. The worldwide market for wavelength selective switch is expected to grow at a cagr of roughly. The trends, architecture, and performance of wavelength selective switches wss are analyzed in the context of their application to reconfigurable optical adddrop multiplexer roadmbased.
Functional architecture an overview sciencedirect topics. A software controlled binary liquid crystal stack, individually tilts each optical channel and a second. The statement so, a 1x9 wss creates a roadm that can add or drop 8 wavelengths. Finisar offers a variety of marketleading products for wavelength management applications. Our products address both reconfigurable and fixed optical adddrop multiplexing oadm and include wavelength selective switches wss and optical channel monitors ocm with flexgrid technology, amplifiers and fixed grid muxdemux plugin modules. This minimizes provisioning constraints that increase the predeployment of capital and slow timetoservice. The wss enables the user to dynamically route any wavelength to and from any port and then seamlessly change connectivity as needed. All modes at a given wavelength are switched as a unit, which is necessary in. This paper will provide an overview of the various node architectures suitable for implementing such networks.
After demultiplexing, the nn individual channels are switched through a nn. The full form of wss is wavelength selective switch. Trueflex 1x9 wavelength selective switch wss lumentum. M wavelength selective switch wss architecture based on the use of an optovlsi processor. The wr pon significantly improves upon the data security compared to the wbs pon while keeping the flexibility of dynamically.
Trueflex twin high port count wavelength selective switch twin. Wavelength selective switching components are used in wdm optical communications networks to route switch signals between optical fibres on a per wavelength basis. Full fledge low portcount wavelength selective switch wss the nistica full fledge offers the ultimate in flexibility in a low cost, low portcount wavelength selective switch wss suitable for core and edge applications. Trueflex twin high port count wavelength selective switch. Nano wavelength selective switch wss enables development of dense, highly integrated optical solutions able to manage traffic in dwdm networks. A new architecture for spaceandwavelength selective switch fabrics is proposed. Wavelength switching optical power control for roadm reconfigurable optical add drop mux optical power control for wavelength switch nodes. If the wavelengthselective fast optical switch is made out of linbo3, like the toff, it is quite straightforward to envision how the optical switching and the wavelengthconversion functions can. Trueflex twin high port count wavelength selective switch twin wss. The wavelength selective switches wss make it possible for either of the wavelengths on either incoming fiber to be connected to either output fiber.
The hardware test platform was a dual intel xeon processor system using 3. Mems based wavelength selective optical switching for integrated photonic circuits gregory n. Apr 08, 20 the 1xn switch can be considered as a generalization of the 1. Integration into any network environment is simple, as the device includes a software api that enables the use of multiple popular scripting languages like tcl, python, and more. Open source infrastructure software for vran deployment and operation. The trends, architecture, and performance of wavelengthselective switches.
Pdf highefficiency beam steering lcos for wavelength. The metro gets a brand new 100g architecture option ciena. The first realization of a wavelength selective switch wss with direct integration of few mode fibers fmf is fully described. Once deployed, channel plans are configurable onthefly, meaning that channel bandwidths can be adjusted to most efficiently carry future demand as it. The concept is scalable to n input and output fibers, each carrying many wavelength channels.
The switch enables adddrop port scaling for supporting capacity growth in cdc networks. It allows the possibility to remotely and automatically control a wavelength to bypass or be added in a node of the network. Wps4 modules function in a bookended configuration with one wps4 being provisioned at the local node and one at the remote node. We present a softwaredefined fragmentationaware elastic optical network, in which an extended openflowbased control plane intelligently routes connection. The mini 50 wss wavelength selective switch announced by jdsu is a nextgeneration 50ghz module that supports network traffic through more than 16 nodes, or entry and exit points in a network, with minimal effect on the network signal. A roadm using the wavelength selective switch architecture. Wavelength selective switch wss the buzz bin craig matsumoto, editorinchief, light reading 8302010. Full fledge low portcount wavelength selective switch wss. Sources of mode dependent losses mdl are identified.
Principle of operation of a 1x3 port system with 3pixel lcos switches the main advantage of an lcos switch is that it does not rely on a moving physical component like the mems switch, allowing for potentially faster switching, the disadvantage being that this technology. Osa wavelengthselective switch with direct few mode fiber. Roadm reconfigurable optical adddrop multiplexer packetlight. Wavelength selective switch wss an active component that performs the actual. In addition to optical switches, passive wdm components can be integrated into our proprietary approach resulting in wavelengthselective switching capabilities. In some solutions, wavelengthselective switch wss devices are employed in the optical nodes to physically and individually route each lightpath toward its destination. Optical switch for network monitoring, wavelength selective. For more complex mesh network architecture higher degree roadm nodes. Wavelength selective switch how is wavelength selective. Lowcost cdc roadm architecture based on stacked wavelength. Interoperable and same footprint as mars4 four degree roadm system on a blade. M wss, was based on spatial separation of light beams according to input port and wavelength channel on a dynamic steering array lcos slm. Wavelengthselective switches for roadm applications ieee xplore. Spectral modeling of channel band shapes in wavelength.