Subcarrier multiplexed passive optical network for low-cost video distribution

1989 ◽  
Author(s):  
R. OLSHANSKY ◽  
V. LANZISERA
Keyword(s):  
Low Cost ◽  
Optical Network ◽  
Passive Optical Network ◽  
Video Distribution

An Integrated High-Speed Full Duplex Coherent OFDM-PON and Visible-Light Communication System

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Simarpreet Kaur ◽  
Mahendra Kumar ◽  
Ashu Verma
Keyword(s):  
Visible Light ◽  
Optical Networks ◽  
High Speed ◽  
Light Emitting Diode ◽  
Low Cost ◽  
Dispersion Compensation ◽  
Optical Network ◽  
Visible Light Communication ◽  
Passive Optical Network ◽  
Full Duplex

AbstractWe demonstrated a full duplex hybrid passive optical network and indoor optical wireless system employing coherent optical frequency division multiplexing. To accomplish reliable transmission in passive optical networks integrated visible-light communication (VLC), yellow light-emitting diode and infrared LED is used in downstream and upstream, respectively, for intra building network. In order to support high data rate, pulse-width reduction scheme based on dispersion compensation fiber is incorporated and system successfully covered the distance of 50 km. A data stream at the rate of 30 Gb/s is transmitted for each user out of eight users. VLC-supported users are catered with the bit rate of 1.87 Gb/s over 150 cm and in order to realize a low-cost system, visible and infrared LEDs are used in downlink and uplink, respectively.

scholarly journals Design of L-Band Multiwavelength Laser for TDM/WDM PON Application

2021 ◽  
Vol 18 (4(Suppl.)) ◽  
pp. 1365
Author(s):  
Nani Fadzlina Naim ◽  
Muhammad Amirul Hafiz Mohamed Hashim ◽  
Suzi Seroja Sarnin ◽  
Norsuzila Ya'acob ◽  
Latifah Sarah Supian
Keyword(s):  
Wavelength Division Multiplexing ◽  
Low Cost ◽  
Optical Network ◽  
Simulation Software ◽  
Passive Optical Network ◽  
Simulation Design ◽  
Wavelength Division ◽  
L Band ◽  
Multiwavelength Laser ◽  
Wdm Pon

This paper presents on the design of L-Band Multiwavelength laser for Hybrid Time Division Multiplexing/ Wavelength Division Multiplexing (TDM/WDM) Passive Optical Network (PON) application. In this design, an L-band Mulltiwavelength Laser is designed as the downstream signals for TDM/WDM PON. The downstream signals ranging from 1569.865 nm to 1581.973 nm with 100GHz spacing. The multiwavelength laser is designed using OptiSystem software and it is integrated into a TDM/WDM PON that is also designed using OptiSystem simulation software. By adapting multiwavelength fiber laser into a TDM/WDM network, a simple and low-cost downstream signal is proposed. From the simulation design, it is found that the proposed design is suitable to be used in TDM/WDM PON for up to 64 Optical Network Units (ONUs).

A low‐cost passive optical network for television broadcasting and high‐speed bidirectional communications in intelligent buildings

2010 ◽  
Vol 33 (5) ◽  
pp. 707-716
Author(s):  
Zih‐Rong Lin ◽  
Cheng‐Kuang Liu ◽  
Gerd Keiser ◽  
San‐Liang Lee ◽  
Kuo‐Chieh Lai ◽  
...  
Keyword(s):  
High Speed ◽  
Low Cost ◽  
Optical Network ◽  
Passive Optical Network ◽  
Intelligent Buildings ◽  
Television Broadcasting

Low-cost and scalable passive optical network architecture using remote repeater

2006 ◽  
Vol 42 (10) ◽  
pp. 589 ◽  
Author(s):  
A.V. Tran ◽  
C.-J. Chae ◽  
R.S. Tucker
Keyword(s):  
Network Architecture ◽  
Low Cost ◽  
Optical Network ◽  
Passive Optical Network

Broadband video distribution over passive optical network using subcarrier multiplexing techniques

1989 ◽  
Vol 25 (2) ◽  
pp. 115 ◽  
Author(s):  
P.A. Rosher ◽  
S.C. Fenning ◽  
M.J. Ramsay ◽  
F.V.C. Mendis
Keyword(s):  
Optical Network ◽  
Passive Optical Network ◽  
Video Distribution ◽  
Subcarrier Multiplexing

An ultra-dense spacing-based PON by incorporating dual drive Mach–Zehnder modulator for comb generation

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Navjot Singh ◽  
Bharat Naresh Bansal
Keyword(s):  
Optical Networks ◽  
High Speed ◽  
Low Cost ◽  
Optical Network ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Passive Optical Network ◽  
Passive Optical Networks ◽  
Differential Phase Shift ◽  
High Data

Abstract Wavelength division multiplexed passive optical is promising technique to achieve a high data rate and large number of user. The notable advantages of WDM PON is the combination of reliability, cheap in cost, accessible bandwidth, high security, large optical reach and it can support large number of ONU. There are multiple approaches to achieve high-speed WDN PON using different transmission techniques. In WDM, multiple lasers are required which increase the cost of the system. To reduce cost, an optical multicarrier generation system is proposed. An economical multiple carrier generation with the incorporation of sine generator and Mach–Zehndar modulator is demonstrated. Utmost work of sine generator and dual drive modulator was to attain low cost functioning of passive optical networks. Multicarrier generation was done and replacement of laser carriers with optical multicarrier generator. Carriers were generated with the frequency spacing of 20 GHz and these carriers were used in the passive optical networks with the tone-to-noise ratio of 40 dB, amplitude difference of 1.4 dB. For the transmission of downstream in the PON, differential phase shift keying was employed at 10 Gbps data speed. Transmission distance achieved was 30 km using single-mode fiber and this was a part of optical distribution network. Optical network unit was next part after ODN and signals were received with balanced receiver. Moreover, half signal was given to intensity modulator for the signal re-modulation. Bit error rate of 10–9 was achieved at all channels in the downstream. An upstream of 10 Gbps was accomplished in the passive optical network.

Comparison and Analysis of ONU Sleep Mechanism Based on OPNET for Green Fiber-Wireless Access Network

2014 ◽  
Vol 700 ◽  
pp. 181-184
Author(s):  
Xu Zhang ◽  
Peng Chao Han ◽  
Yin Peng Yu ◽  
Yu Fang Zhou ◽  
Ya Min Xie
Keyword(s):  
Energy Consumption ◽  
Low Power ◽  
Low Cost ◽  
Optical Network ◽  
Access Network ◽  
High Capacity ◽  
Passive Optical Network ◽  
Sleep State ◽  
Long Distance ◽  
Save Energy

As one of promising "last mile" scheme for broadband access network, Fiber-Wireless (FiWi) access network has the advantages of high capacity, long distance, low cost etc because it is the integration of optical back-end and wireless front-end. At the same time, energy consumption of FiWi access network is an important factor that limits the development of networks. A number of ONU sleep states such as ONU power shedding state, ONU doze state, ONU deep sleep state and ONU fast sleep state have been proposed to obtain low-power ONU state, which indirectly reduce energy consumption of networks. However, these low-power states of ONU are born to coordinate to green Passive Optical Network (PON), of which the function of ONU is different from FiWi. In this paper, two low power ONU sleep mechanisms called Static ONU Sleep (SOS) mechanism and Dynamic ONU Sleep (DOS) mechanism, respectively, are proposed and embedded into FiWi access network. By simulation and analysis based on OPNET 14.5, this paper shows that the DOS mechanism has a better performance than SOS, and both of them can save energy of FiWi access network.

scholarly journals CUSTOMER ACCESS NETWORKING ON THE BASIS OF ETHERNET FTTH, PON TECHNOLOGIES

2017 ◽  
Vol 21 (1) ◽  
pp. 8-15
Author(s):  
A. M. Belitsky ◽  
R. R. Ivanenko ◽  
A. V. Besedin ◽  
A. Y. Klochkov
Keyword(s):  
Communication Networks ◽  
Data Transfer ◽  
Low Cost ◽  
Optical Network ◽  
Access Point ◽  
Passive Optical Network ◽  
Optical Networking ◽  
Home Networks ◽  
Fiber To The Home ◽  
Telephone Exchange

Nowadays, one of the trends of information and communication networks development is the provision within the shortest time of a larger number of telecommunication services to network users. Currently, connection of subscribers to xDSL communication channels provided by public switched telephone networks (PSTN) is widespread. Providers of classic telephony make active use of these networks due to the low cost of the connection of a subscriber. An obvious disadvantage of this connection type is the limited data transfer rate. Some Internet providers rapidly develop ETTH (Ethernet To The Home) networks. The advantage of ETTH networks is the targeting of the delivery of communication services to subscribers. One of the disadvantages is the operation of a network at the Ethernet level with all typical for this protocol features. The practice of optical networking has existed for many years; however, the basic approach to optical networking is based on the use of active equipment from the access node to users. PON-based (Passive Optical Network) FTTH architecture (Fiber To The Home) is as a rule, compatible with the Ethernet Protocol. The article shows the advantages of the deployment of PON-based FTTH networks, in particular, saving of fiber-optic lines in the area from the optical splitters to the Central telephone exchange or access point by using relevant ports. The article provides the description of access networks architecture applying Ethernet FTTH and PON technologies, and also discusses the prospects for further development of the above mentioned networks.

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