تطوير أداء وحدة الشبكة الضوئية (ONU) باستخدام تقنية التجميع بتقسيم الاستقطاب
Abstract
يقترح البحث إجراء تطوير في بنية و حدة الشبكة الضوئية عبر إدخال مرشح ضوئي صرف قادر على التعامل مع تقنية التجميع بتقسيم طول الموجة ( WDM: Wavelength Division Multiplexing ) و تقنية التجميع بتقسيم الاستقطاب (PDM: Polarization Division Multiplexing ) بنفس الوقت مما يمكننا من إرسال قناة على المركبة الأفقية للشعاع الضوئي وأخرى على المركبة الشاقولية على نفس طول الموجة. تسمح تقنية التجميع الهجين WDM-PDMبإيصال ضعف عدد القنوات إلى المشترك دون أي تغيير في البنية التحتية بين المقسم الضوئي و المشترك. يبرهن البحث أولا صحة فكرة استخدام التجميع الهجين WDM-PDMُ باستخدام برنامج معروف في مجال الشبكات الضوئية OptiSystem7.0 ثم يدرس البحث فعالية استخدام المرشح الضوئي المقترح إدخاله في بنية ال ONU من أجل ثلاث حالات للشبكات الضوئية : WDM-PDM للوصلة الهابطة، WDM(Downstream)/( TDM(Upstream )، WDM(Upstream)/WDM(Downstream) بحسب توصيات اتحاد الاتصالات الدولي. This research proposes the development of Optical Network Units by introducing an all optical Filter. This optical filter can treat WDM and PDM technology at the same time enabling us to send a channel on the horizontal and vertical of the same wavelength .The hybrid WDM-PDM technology allows to delivery double channels for users without any changing in infrastructure between optical central office and user . Firstly , this article prove the idea of hybrid WDM-PDM technology by OptiSystem7.0 simulator, secondly we study proposed all optical Filter for three cases of optical access: WDM-PDM(Downstream), WDM(Downstream)/( TDM(Upstream) , WDM(Downstream)/ WDM(Downstream) recommended by the international communication federation, ICF.Downloads
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