OPTICAL ACCESS NETWORK’s (OAN’s) 1. History & Reason of Existence The experience with active and passive Today, considering all the new services optical networks have been gained like high definition IPTV, online gaming within ten years of experience with and remote surveillance, ICT service active and passive optical networks providers are well advised to seek .These networks has different features access network solutions with even that causes both of them to have more bandwidth for the post-DSL era. advantages and disadvantages. Fiber However, due to the physical properties optics network can be laid directly to of copper wire in the last mile, VDSL2 households (Fiber to Home [FTTH]) by has reached its limits, even if technology using direct networks which include the called DSM (Dynamic Spectrum main types of network that are Passive Management) is being developed to optical networks (PON) & Active optical boost the transmission capacity on networks (AON). copper. Communication solutions like WiMAX, or LTE in mobile telephony, In the mid-1990s, the first large-scale reach the limits of their capabilities PON installations were commissioned in even more quickly because of poorer Japan. In many other parts of the physical transmission properties (in world, FTTH concepts were a long way comparison with copper). To date, the off. The existence of the internet and only solution for seemingly infinite the need of better bandwidth has a bandwidths has been the optical wave great attract to customers but the guide, also called Fiber optics. technology was much too expensive in any case ,so earlier customers didn’t 2. Basic Facts believe it’s necessary to have a higher The main difference between PON & bandwidth capacity until the beginning AON is that PON uses passive splitters. of the new millennium. The splitter is basically a kind of The subsequent escalation of that distributes the optical signal bandwidth, fuelled by the availability of for the subscriber line to fiber optic broadband DSL connections via copper routes without any electrical current wire, has turned the internet and (which is why it is called passive). associated services into an unparalleled success story.
OPTICAL ACCESS NETWORK’s (OAN’s) 1. History & Reason of Existence The experience with active and passive optical networks have been gained within ten years of experience with active and passive optical networks .These networks has different features that causes both of them to have advantages and disadvantages. Fiber optics network can be laid directly to households (Fiber to Home [FTTH]) by using direct networks which include the main types of network that are Passive optical networks (PON) & Active optical networks (AON). In the mid-1990s, the first large-scale PON installations were commissioned in Japan. In many other parts of the world, FTTH concepts were a long way off. The existence of the internet and the need of better bandwidth has a great attract to customers but the technology was much too expensive in any case ,so earlier customers didn’t believe it’s necessary to have a higher bandwidth capacity until the beginning of the new millennium. The subsequent escalation of bandwidth, fuelled by the availability of broadband DSL connections via copper wire, has turned the internet and associated services into an unparalleled success story. Today, considering all the new services like high definition IPTV, online gaming and remote surveillance, ICT service providers are well advised to seek access network solutions with even more bandwidth for the post-DSL era. However, due to the physical properties of copper wire in the last mile, VDSL2 has reached its limits, even if technology called DSM (Dynamic Spectrum Management) is being developed to boost the transmission capacity on copper. Communication solutions like WiMAX, or LTE in mobile telephony, reach the limits of their capabilities even more quickly because of poorer physical transmission properties (in comparison with copper). To date, the only solution for seemingly infinite bandwidths has been the optical wave guide, also called Fiber optics. 2. Basic Facts The main difference between PON & AON is that PON uses passive splitters. The splitter is basically a kind of that distributes the optical signal for the subscriber line to fiber optic routes without any electrical current (which is why it is called passive).
46858531-Optical-Access-Network.docx