© 2018 JETIR June 2018, Volume 5, Issue 6 www.jetir.org (ISSN-2349-5162) JETIR1806608 Journal of Emerging Technologies and Innovative Research (JETIR) www.jetir.org 737 A STUDY OF PASSIVE OPTICAL NETWORK AND GIGABIT PASSIVE OPTICAL NETWORK Amit Kumar M.Tech (Electronics and Communication Engineering) RIMT, MandiGobindgarh, Punjab, India Ravinderpal Singh Assistant Professor, Technical Head and BDM (Incubation Department / R&D) RIMT, Mandi Gobindgarh, Punjab, India Monika Mehra Head of Department, Electronics and Communication Engineering. RIMT,Mandi Gobindgarh, Punjab, India Abstract— Nowadays in the fiber-to-the home (FTTH) mechanisms the GPON is the broadly utilized method. Within the carrier’s central office and consumer sites the optical access lines are employed in the GPON mechanism is a bi-directional point-to-multipoint system structural design. The GPON mechanism is regarded as the most powerful scheme for the extensive employments comparative to the other mechanisms which are utilized to offer the fiber to the home. On the basis of the time division multiplexing the GPON is occurred as the single downstream wavelength is utilized for the digital and another downstream is utilized for the analog video services. With the help of the GPON encapsulating method (GEM) it can transfer the Ethernet as well as ATM and TDM by having PSTN, ISDN, E1 and E3. This paper offers an overview to the work that has been done many authors. Index Terms— PON, GPON, FTTX, ONU. I. INTRODUCTION The operational mechanisms on the basis of the Optical fiber such as fiber-to-the home, fiber-to-the-building, etc. have identified the gains of minimum loss, large bandwidth and large reach and now it is going to employ globally. In the point- to-point [1] and point-to-multipoint time-multiplexed passive optical network (PON) structural designs the Fiber-to-the- home systems are employed. A three-layered service is delivered to the users like home [2], university and customer principles from the central office (CO) by the usual passive optical network (PON) as illustrated in the figure 1. Among the higher limit of 1550 nm and the lower limit of 1300 nm is monitored by the central office [3] on the receiver section. A couple of key standards for the PONs are the Ethernet PON (EPON) and the gigabits PON (GPON) [4]. Within the carrier’s central office and consumer sites the optical access lines are employed in the GPON mechanism is a bi-directional point-to-multipoint system structural design. The GPON mechanism is regarded as the most powerful scheme for the extensive employments comparative to the other mechanisms which are utilized to offer the fiber to the home. On the basis of the time division multiplexing the GPON is occurred as the single downstream [5] wavelength is utilized for the digital and another downstream is utilized for the analog video services. With the help of the GPON encapsulating method (GEM) it can transfer the Ethernet as well as ATM and TDM by having PSTN, ISDN, E1 and E3 [6]. This paper offers an overview to the work that has been done many authors. To the passive optical power splitter only a unique mode optical fiber is linked to the close locations of the customers from the central office. The optical power is alienated into N different routes to the users at this point by the passive splitting component [7]. The several splitting routes may fluctuate from 2 to 64. The unique single-mode fibers are linked to every user such as house, office, etc. from the optical splitter. From the central office to every customer the optical fiber transmission ranges up to 20 km [8]. Fig 1 General PON network II. GPON WORKING In order to transfer the information bi-directionally (upstream and downstream) on an individual optical fiber the WDM technique is utilized by the GPON method. The broadcast mechanism is utilized by the GPON for the downstream data transfer in order to [9] alienate the transmitter and the receiver signals of several customers on the similar optical fiber. And for the upstream data transmission the TDMA mechanism is utilized. For the triple play service like high-speed Internet, IP telephony, and broadcasting video the GPON is the finest option. To summarize the information on the GPON the GPON Encapsulation Method is utilized. On the basis of the vaguely Wavelength Combiner Passive 1 to N Optical Splitter Customer Premises University Single Feeder Fiber Up to 20 km Access Region SDF SDF 1310nm 1550 nm (Video) 1490 nm