Volume-9 • Number-1 Jan -June 2017 pp. 115-119 available online at www.csjournalss.com A UGC Recommended Journal http://ugc.ac.in/journallist Page | 115 I I n n v v e e s s t t i i g g a a t t i i o o n n o o f f 8 8 0 0 G G B B P P S S O O p p t t i i c c a a l l A A c c c c e e s s s s S S y y s s t t e e m m f f o o r r 1 1 6 6 0 0 0 0 C C l l i i e e n n t t s s Ankur Singhal 1 & Charanjeet Singh 2 1 Research Scholar, IKGPTU, Jalandhar 2 Dept.of ECE, RBIENT, Hoshiarpur Email: asking2k@gmail.com Abstract: The hardware of an access system plays an essential part in its performance. Coming age systems must have the capacity to give high data transfer limit for a large no. of clients while guaranteeing a good Quality of service (QoS). This paper proposes a passive optical network (PON) system with enhanced data rate up to 80 Gbps. The system is investigated on the basis of different parameters like Q-factor, Eye diagram analysis, waveform spectrum analysis. Information signal is transmitted with an input power of 10 dBm and 15 dBm. Information is communicated without the use of any reach extender devices like amplifier reducing the overall cost of the network. Also, the system under evaluation is analyzed for different receiver filters. It is observed that Bessel filter performs better among different filters. The evaluated system transmits signals up to around 60 Km for 1600 users with acceptable Q-factor of 7. Keywords: Optical access system, Passive optical network (PON), Q-factor, Eye diagram. 1. Introduction The fast development of Internet and its associated services, for example, multimedia communication and voice- over-IP (VoIP) is quickening interest for the broadband access system. While most broadband information around the globe are conveyed by means of copper cable systems, optical technology has been accessible for a number of years and is being used extensively in a few nations [1]. Whenever optical access system is installed, passive optical networks (PONs) are employed because the communicating fiber and the associated hardware can be shared by a more no. of clients [2]. PON is an innovation seen by numerous as an appealing answer for the last mile issue. A PON is generally a point to multipoint optical system with no active or dynamic components in the information across the communicating channel. The components utilized as a part of PON are inactive couplers, combiners, and splitters [3, 4]. PON can be deployed in a no. of topologies like hierarchical (tree), tree-and-branches, ring or transport topology with the tree being employed frequently. All communication in a tree-based system is performed linking an optical line terminal (OLT) with optical network units (ONUs). The OLT dwells in the central office (CO), interfacing the core system with the access system [5, 6]. The ONUs resides in the client place for processing of multimedia traffic. Though splitter have a 1×32 split ratio, but ratio of 1×16 and 1×8 are are utilized. New measures are calling for the much bigger split ratio of 1×64 and 1×128 or more than this [7]. Benefits of utilizing PON for a client network comprise of large reach, lessened fiber installation, the diminished tariff of preservation (due to inactive equipment) and easy shift to large transmission rate [8]. PON gives various services for access system at minimal tariff (close to that of digital subscriber line (DSL)) and less power (virtually cutting by half of lifetime discharges) by communicating through common fiber links and hardware appliances among various clients [9,10]. Different types of PON are defined in the literature: Ethernet PON (EPON) is standardized as IEEE 802.3ah [11], while Asynchronous transfer mode (ATM) PON (APON) also called as broadband PON (BPON) as ITU-T G.983, and gigabit PON (GPON) is defined in the ITU-T G.984. EPONs are considered to be more encouraging than APONs for information carrying systems. EPON were presented by Ethernet in the First Mile (EFM) in which a P2MP topology was executed with optical splitters [12, 13]. GPONs, by utilizing GEM rather than ATM, maintain a strategic distance from the wastefulness of division and reassembly [14]. The next version of GPON is defined as XGPON, in this term X describes various information rates like 10 Gbps or more than that. XGPON utilizes NRZ modulation plan same like GPON [15]. Another concept to extend the reach of the system was utilized by using an amplifier. Generally Erabium Doped Fiber Amplifier (EDFA) is used because of its more gain and output power. EDFA posses a no. of problems also, like it is bulky because of which it utilize more power [16]. This problem is a major hindrance in the use of amplifier; also it pushes up the cost of the system. In this paper, we have proposed a Passive optical access system which can transmit at a high rate of 80 Gbps. The simulated model communicates with a separation of 60 Km. This paper is systemized as follows. Segment 2 portrays the proposed architecture with Section 3 clarifying the results obtained and toward the end Section 4 summarizes the conclusion.