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- Optical_add-drop_multiplexer abstract "An optical add-drop multiplexer (OADM) is a device used in wavelength-division multiplexing systems for multiplexing and routing different channels of light into or out of a single mode fiber (SMF). This is a type of optical node, which is generally used for the construction of optical telecommunications networks. \"Add\" and \"drop\" here refer to the capability of the device to add one or more new wavelength channels to an existing multi-wavelength WDM signal, and/or to drop (remove) one or more channels, passing those signals to another network path. An OADM may be considered to be a specific type of optical cross-connect.A traditional OADM consists of three stages: an optical demultiplexer, an optical multiplexer, and between them a method of reconfiguring the paths between the demultiplexer, the multiplexer and a set of ports for adding and dropping signals. The demultiplexer separates wavelengths in an input fiber onto ports. The reconfiguration can be achieved by a fiber patch panel or by optical switches which direct the wavelengths to the multiplexer or to drop ports. The multiplexer multiplexes the wavelength channels that are to continue on from demultiplexer ports with those from the add ports, onto a single output fiber.All the light paths that directly pass an OADM are termed cut-through lightpaths, while those that are added or dropped at the OADM node are termed added/dropped lightpaths. An OADM with remotely reconfigurable optical switches (for example 1×2) in the middle stage is called a reconfigurable OADM (ROADM). Ones without this feature are known as fixed OADMs. While the term OADM applies to both types, it is often used interchangeably with ROADM.Physically, there are several ways to realize an OADM. There are a variety of demultiplexer and multiplexer technologies including thin film filters, fiber Bragg gratings with optical circulators, free space grating devices and integrated planar arrayed waveguide gratings. The switching or reconfiguration functions range from the manual fiber patch panel to a variety of switching technologies including microelectromechanical systems (MEMS), liquid crystal and thermo-optic switches in planar waveguide circuits.Although both have add/drop functionality, OADMs are distinct from add-drop multiplexers. The former function in the photonic domain under wavelength-division multiplexing, while the latter are implicitly considered to function in the traditional SONET/SDH networks.".
- Optical_add-drop_multiplexer thumbnail Fbg_oadm.GIF?width=300.
- Optical_add-drop_multiplexer wikiPageExternalLink terminology.php?letter=all&id=8.
- Optical_add-drop_multiplexer wikiPageID "6223328".
- Optical_add-drop_multiplexer wikiPageLength "3391".
- Optical_add-drop_multiplexer wikiPageOutDegree "29".
- Optical_add-drop_multiplexer wikiPageRevisionID "659698786".
- Optical_add-drop_multiplexer wikiPageWikiLink Add-drop_multiplexer.
- Optical_add-drop_multiplexer wikiPageWikiLink Arrayed_waveguide_grating.
- Optical_add-drop_multiplexer wikiPageWikiLink Category:Fiber-optic_communications.
- Optical_add-drop_multiplexer wikiPageWikiLink Category:Multiplexing.
- Optical_add-drop_multiplexer wikiPageWikiLink Fiber_Bragg_grating.
- Optical_add-drop_multiplexer wikiPageWikiLink File:Fbg_oadm.GIF.
- Optical_add-drop_multiplexer wikiPageWikiLink Light.
- Optical_add-drop_multiplexer wikiPageWikiLink Light_paths.
- Optical_add-drop_multiplexer wikiPageWikiLink Liquid_crystal.
- Optical_add-drop_multiplexer wikiPageWikiLink Microelectromechanical_systems.
- Optical_add-drop_multiplexer wikiPageWikiLink Multicast_lightpaths.
- Optical_add-drop_multiplexer wikiPageWikiLink Multiplexer.
- Optical_add-drop_multiplexer wikiPageWikiLink Multiplexing.
- Optical_add-drop_multiplexer wikiPageWikiLink Optical_circulator.
- Optical_add-drop_multiplexer wikiPageWikiLink Optical_cross-connect.
- Optical_add-drop_multiplexer wikiPageWikiLink Optical_mesh_network.
- Optical_add-drop_multiplexer wikiPageWikiLink Optical_switch.
- Optical_add-drop_multiplexer wikiPageWikiLink Reconfigurable_optical_add-drop_multiplexer.
- Optical_add-drop_multiplexer wikiPageWikiLink Routing.
- Optical_add-drop_multiplexer wikiPageWikiLink Single-mode_optical_fiber.
- Optical_add-drop_multiplexer wikiPageWikiLink Synchronous_optical_networking.
- Optical_add-drop_multiplexer wikiPageWikiLink Telecommunication.
- Optical_add-drop_multiplexer wikiPageWikiLink Thermo-optic_switch.
- Optical_add-drop_multiplexer wikiPageWikiLink Waveguide.
- Optical_add-drop_multiplexer wikiPageWikiLink Wavelength.
- Optical_add-drop_multiplexer wikiPageWikiLink Wavelength-division_multiplexing.
- Optical_add-drop_multiplexer wikiPageWikiLinkText "OADM".
- Optical_add-drop_multiplexer wikiPageWikiLinkText "Optical Add/Drop Multiplexer".
- Optical_add-drop_multiplexer wikiPageWikiLinkText "Optical add-drop multiplexer".
- Optical_add-drop_multiplexer wikiPageWikiLinkText "optical (de)multiplexer".
- Optical_add-drop_multiplexer wikiPageWikiLinkText "optical add-drop multiplexer".
- Optical_add-drop_multiplexer wikiPageUsesTemplate Template:Cite_web.
- Optical_add-drop_multiplexer wikiPageUsesTemplate Template:Distinguish.
- Optical_add-drop_multiplexer wikiPageUsesTemplate Template:Refbegin.
- Optical_add-drop_multiplexer wikiPageUsesTemplate Template:Refend.
- Optical_add-drop_multiplexer subject Category:Fiber-optic_communications.
- Optical_add-drop_multiplexer subject Category:Multiplexing.
- Optical_add-drop_multiplexer hypernym Device.
- Optical_add-drop_multiplexer type Device.
- Optical_add-drop_multiplexer type Communication.
- Optical_add-drop_multiplexer type Protocol.
- Optical_add-drop_multiplexer type Thing.
- Optical_add-drop_multiplexer comment "An optical add-drop multiplexer (OADM) is a device used in wavelength-division multiplexing systems for multiplexing and routing different channels of light into or out of a single mode fiber (SMF). This is a type of optical node, which is generally used for the construction of optical telecommunications networks.".
- Optical_add-drop_multiplexer label "Optical add-drop multiplexer".
- Optical_add-drop_multiplexer differentFrom Add-drop_multiplexer.
- Optical_add-drop_multiplexer sameAs Q280587.
- Optical_add-drop_multiplexer sameAs Optical_add-drop_multiplexer.
- Optical_add-drop_multiplexer sameAs OADM.
- Optical_add-drop_multiplexer sameAs OADM.
- Optical_add-drop_multiplexer sameAs OADM.
- Optical_add-drop_multiplexer sameAs m.0fxm07.
- Optical_add-drop_multiplexer sameAs Q280587.
- Optical_add-drop_multiplexer wasDerivedFrom Optical_add-drop_multiplexer?oldid=659698786.
- Optical_add-drop_multiplexer depiction Fbg_oadm.GIF.
- Optical_add-drop_multiplexer isPrimaryTopicOf Optical_add-drop_multiplexer.