{"id":5833,"date":"2017-08-31T03:24:09","date_gmt":"2017-08-31T03:24:09","guid":{"rendered":"https:\/\/www.tarluz.com\/?p=5833\/"},"modified":"2017-08-31T03:43:40","modified_gmt":"2017-08-31T03:43:40","slug":"xwdm-wave-division-multiplexing","status":"publish","type":"post","link":"https:\/\/www.tarluz.com\/de\/passive-komponenten\/xwdm-wave-division-multiplexing\/","title":{"rendered":"xWDM (Wave Division Multiplexing)"},"content":{"rendered":"

[vc_row rt_row_background_width=“default“ rt_row_style=“default-style“ rt_row_borders=““ rt_row_paddings=“true“ rt_bg_effect=“classic“ rt_bg_image_repeat=“repeat“ rt_bg_size=“cover“ rt_bg_position=“right top“ rt_bg_attachment=“scroll“ rt_bg_video_format=“self-hosted“][vc_column rt_wrp_col_paddings=“false“ rt_border_top=““ rt_border_bottom=““ rt_border_left=““ rt_border_right=““ rt_border_top_mobile=““ rt_border_bottom_mobile=““ rt_border_left_mobile=““ rt_border_right_mobile=““ rt_bg_image_repeat=“repeat“ rt_bg_size=“auto auto“ rt_bg_position=“right top“ rt_bg_attachment=“scroll“][vc_column_text]Kann mir das mal einer erkla\u0308ren? Ja, ko\u0308nnen wir. Man nehme 2 Trichter und verbinde diese mit ei- nem Schlauch. Dann leuchte man mit unterschied- lich farbigem Licht in den einen Trichter und sieht, wie die farbigen Strahlen am anderen Ende wieder austreten.<\/p>\n

Der klassische WDM-Ansatz ist eine Single-Fiber Lo\u0308- sung; d. h. fu\u0308r die U\u0308bertragung wird nur eine Glasfaser beno\u0308tigt, auf der zwei verschiedene Wellenla\u0308ngen in entgegengesetzter Richtung gesendet werden.
\nAuf Seite A und B werden unterschiedliche, aber auf- einander abgestimmte SFPs, eingesetzt.<\/p>\n

Seite A: Senden \/ TX @ 1310nm, Empfangen \/ RX @ 1550nm
\nSeite B: Senden \/ TX @1550nm,\u00a0 Empfangen \/ RX @ 1310nm<\/p>\n

Je nach Anwendung, Datenrate und Distanz werden auch andere Wellenla\u0308ngen verwendet. In diesem Zusammenhang werden auch die Bezeich- nungen BiDirektional oder BiDi verwendet. CWDM und DWDM sind weiterentwickelte Verfahren um einerseits Glasfasern zu sparen und andererseits die Transportkapazita\u0308t zu vervielfachen. Beispielsweise ko\u0308nnen auf einem Faserpaar oder ei- ner einzelnen Faser anstatt ein Service u\u0308ber 80 ver- schiedene Dienste u\u0308bertragen werden. Allerdings verwenden WDM, CWDM und DWDM mehr oder weniger die gleichen Wellenla\u0308ngen. Wer wem die Wellenla\u0308ngen streitig macht und wie man sie trotzdem kombinieren kann, erfahren Sie auf den folgenden Seiten.<\/p>\n

U\u0308bersicht Wellenla\u0308ngenbelegung WDM (Standard) \/ CWDM \/ DWDM<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n
Band<\/td>\nBezeichnung<\/td>\nWellenla\u0308ngen Bereich<\/td>\nStandard Wellenla\u0308ngen<\/td>\nCWDM Channel<\/td>\nDWDM Channel<\/td>\n<\/tr>\n
O-Band<\/td>\nOrignial<\/td>\n1260 ~ 1360nm<\/td>\n1310<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
E-Band<\/td>\nExtended<\/td>\n1360 ~ 1460nm<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
S-Band<\/td>\nShort wavelength<\/td>\n1460 ~ 1530nm<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
C-Band<\/td>\nConventional<\/td>\n1530 ~ 1565nm<\/td>\n1550<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
L-Band<\/td>\nLong Wavelength<\/td>\n1565 ~ 1625nm<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
U-Band<\/td>\nUltralong wavelengths<\/td>\n1625 ~ 1675nm<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Nutzen von DWDM \/ CWDM<\/strong>
\nGlasfasern u\u0308ber lange Distanzen zu verlegen ist teuer. Die Nutzung ist es ebenfalls.
\nEs liegt also nahe, dass man versucht, die Glasfa- sern so effizient wie mo\u0308glich auszunutzen.
\nIst ho\u0308chste Dichte ein Muss und mu\u0308ssen ev. auch noch unterschiedliche Dienste \/ Protokolle auf eine Farbe gemuxt werden ko\u0308nnen, wird DWDM die ver- wendete Technologie sein. In fast allen anderen Fa\u0308l- len lohnt sich ein Blick auf das passive CWDM.<\/p>\n

Aktive und Passive DWDM \/ CWDM Systeme<\/strong>
\nOb CWDM oder DWDM, beide Systeme beno\u0308tigen \u201efarbiges\u201c Licht, respektive bestimmte Wellenla\u0308ngen.
\nAktive, in der Regel modulare Systeme erzeugen die no\u0308tigen Wellenla\u0308ngen selber. Passive Systeme lassen die angeschlossenen Gera\u0308te das farbige Licht bereitstellen.<\/p>\n

Funktionsweise von xWDM<\/strong>
\nSenden: Der Lichtstrahl der hoch pra\u0308zisen La- ser, die jeweils nur eine Wellenla\u0308nge erzeugen ko\u0308n- nen, werden durch optische Elemente auf die Kern- faser des Lichtwellenleiters umgelenkt.
\nEmpfangen: Die verschiedenen Wellenla\u0308ngen werden auf Filter umgelenkt, die jeweils ihre \u201eFarbe\u201c herausfiltern und auf die Photodiode (Empfa\u0308nger) treffen lassen.<\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row rt_row_background_width=“default“ rt_row_style=“default-style“ rt_row_borders=““ rt_row_paddings=“true“ rt_bg_effect=“classic“ rt_bg_image_repeat=“repeat“ rt_bg_size=“cover“ rt_bg_position=“right top“ rt_bg_attachment=“scroll“ rt_bg_video_format=“self-hosted“][vc_column rt_wrp_col_paddings=“false“ rt_border_top=““ rt_border_bottom=““ rt_border_left=““ rt_border_right=““ rt_border_top_mobile=““ rt_border_bottom_mobile=““ rt_border_left_mobile=““ rt_border_right_mobile=““ rt_bg_image_repeat=“repeat“ rt_bg_size=“auto auto“ rt_bg_position=“right top“ rt_bg_attachment=“scroll“][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":"

[vc_row rt_row_background_width=“default“ rt_row_style=“default-style“ rt_row_borders=““ rt_row_paddings=“true“ rt_bg_effect=“classic“ rt_bg_image_repeat=“repeat“ rt_bg_size=“cover“ rt_bg_position=“right top“ rt_bg_attachment=“scroll“ rt_bg_video_format=“self-hosted“][vc_column rt_wrp_col_paddings=“false“ rt_border_top=““ rt_border_bottom=““ rt_border_left=““ rt_border_right=““ rt_border_top_mobile=““ rt_border_bottom_mobile=““ rt_border_left_mobile=““ rt_border_right_mobile=““ rt_bg_image_repeat=“repeat“ rt_bg_size=“auto auto“ rt_bg_position=“right top“ rt_bg_attachment=“scroll“][vc_column_text]Kann mir das mal einer erkla\u0308ren? Ja, ko\u0308nnen wir. Man nehme 2 Trichter und verbinde diese mit ei- nem Schlauch. Dann leuchte man mit unterschied- lich farbigem Licht in […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1086],"tags":[86,194,193,1091],"class_list":["post-5833","post","type-post","status-publish","format-standard","hentry","category-passive-komponenten","tag-cwdm","tag-dwdm","tag-wdm","tag-xwdm"],"yoast_head":"\nxWDM (Wave Division Multiplexing) - TARLUZ - FIBER OPTIC SUPPLIERS<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tarluz.com\/de\/passive-komponenten\/xwdm-wave-division-multiplexing\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"xWDM (Wave Division Multiplexing)\" \/>\n<meta property=\"og:description\" content=\"[vc_row rt_row_background_width=“default“ rt_row_style=“default-style“ rt_row_borders=““ rt_row_paddings=“true“ rt_bg_effect=“classic“ rt_bg_image_repeat=“repeat“ rt_bg_size=“cover“ rt_bg_position=“right top“ rt_bg_attachment=“scroll“ rt_bg_video_format=“self-hosted“][vc_column rt_wrp_col_paddings=“false“ rt_border_top=““ rt_border_bottom=““ rt_border_left=““ rt_border_right=““ rt_border_top_mobile=““ rt_border_bottom_mobile=““ rt_border_left_mobile=““ rt_border_right_mobile=““ rt_bg_image_repeat=“repeat“ rt_bg_size=“auto auto“ rt_bg_position=“right top“ rt_bg_attachment=“scroll“][vc_column_text]Kann mir das mal einer erkla\u0308ren? Ja, ko\u0308nnen wir. Man nehme 2 Trichter und verbinde diese mit ei- nem Schlauch. Dann leuchte man mit unterschied- lich farbigem Licht in […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.tarluz.com\/de\/passive-komponenten\/xwdm-wave-division-multiplexing\/\" \/>\n<meta property=\"og:site_name\" content=\"TARLUZ - FIBER OPTIC SUPPLIERS\" \/>\n<meta property=\"article:published_time\" content=\"2017-08-31T03:24:09+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2017-08-31T03:43:40+00:00\" \/>\n<meta name=\"author\" content=\"TARLUZ.COM\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Verfasst von\" \/>\n\t<meta name=\"twitter:data1\" content=\"TARLUZ.COM\" \/>\n\t<meta name=\"twitter:label2\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data2\" content=\"3\u00a0Minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.tarluz.com\\\/de\\\/passive-komponenten\\\/xwdm-wave-division-multiplexing\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.tarluz.com\\\/de\\\/passive-komponenten\\\/xwdm-wave-division-multiplexing\\\/\"},\"author\":{\"name\":\"TARLUZ.COM\",\"@id\":\"https:\\\/\\\/www.tarluz.com\\\/de\\\/#\\\/schema\\\/person\\\/5740f1b7210de5d651317604459f2fb1\"},\"headline\":\"xWDM (Wave Division Multiplexing)\",\"datePublished\":\"2017-08-31T03:24:09+00:00\",\"dateModified\":\"2017-08-31T03:43:40+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.tarluz.com\\\/de\\\/passive-komponenten\\\/xwdm-wave-division-multiplexing\\\/\"},\"wordCount\":681,\"commentCount\":0,\"keywords\":[\"CWDM\",\"DWDM\",\"WDM\",\"xWDM\"],\"articleSection\":[\"Passive Komponenten\"],\"inLanguage\":\"de\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.tarluz.com\\\/de\\\/passive-komponenten\\\/xwdm-wave-division-multiplexing\\\/\",\"url\":\"https:\\\/\\\/www.tarluz.com\\\/de\\\/passive-komponenten\\\/xwdm-wave-division-multiplexing\\\/\",\"name\":\"xWDM (Wave Division Multiplexing) - 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TARLUZ - FIBER OPTIC SUPPLIERS","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.tarluz.com\/de\/passive-komponenten\/xwdm-wave-division-multiplexing\/","og_locale":"de_DE","og_type":"article","og_title":"xWDM (Wave Division Multiplexing)","og_description":"[vc_row rt_row_background_width=“default“ rt_row_style=“default-style“ rt_row_borders=““ rt_row_paddings=“true“ rt_bg_effect=“classic“ rt_bg_image_repeat=“repeat“ rt_bg_size=“cover“ rt_bg_position=“right top“ rt_bg_attachment=“scroll“ rt_bg_video_format=“self-hosted“][vc_column rt_wrp_col_paddings=“false“ rt_border_top=““ rt_border_bottom=““ rt_border_left=““ rt_border_right=““ rt_border_top_mobile=““ rt_border_bottom_mobile=““ rt_border_left_mobile=““ rt_border_right_mobile=““ rt_bg_image_repeat=“repeat“ rt_bg_size=“auto auto“ rt_bg_position=“right top“ rt_bg_attachment=“scroll“][vc_column_text]Kann mir das mal einer erkla\u0308ren? 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