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Showing papers on "10G-PON published in 1992"


Journal ArticleDOI
01 May 1992-IEEE Lts
TL;DR: The technological issues related to the implementation of such topologies are investigated, covering optical transmitters and receivers, tunable lasers and filters, and polarization control.
Abstract: Services and possible network topologies are discussed. The technological issues related to the implementation of such topologies are investigated, covering optical transmitters and receivers, tunable lasers and filters, and polarization control. Some experimental implementations reported in the literature are described. >

36 citations


Proceedings ArticleDOI
06 Dec 1992
TL;DR: The feasibility and architectures of applying wavelength division multiple access (WDMA) techniques to establish a passive optical packet-switched metropolitan/wide area network are investigated and a simple media access protocol based on using both tunable transmitter and tunable receiver is proposed.
Abstract: The feasibility and architectures of applying wavelength division multiple access (WDMA) techniques to establish a passive optical packet-switched metropolitan/wide area network are investigated. A passive optical network architecture that contains no switching and buffering elements inside the network and can support a multi-gigabit data rate per channel is proposed. In addition, a simple media access protocol based on using both tunable transmitter and tunable receiver is proposed and analyzed. Performance study shows that the maximum average throughput of each transmitter or receiver approaches 50% with small header packet size (as compared to the data packet). >

11 citations


Proceedings ArticleDOI
M.J. Beacken1
05 Oct 1992
TL;DR: In this article, an example of an optical local area network (OLAN) capable of supporting end-to-end very high-speed communication, on the order of gigabits per second, is presented.
Abstract: The author surveys several of the candidate architectures suitable for embedded high-performance photonic networks and examines advanced architectural concepts made viable for avionics applications by emerging photonics technology. An example of an optical local area network (OLAN) capable of supporting end-to-end very-high-speed communication, on the order of gigabits per second, is presented. The advantages of the OLAN include: the capability of having several logical networks, each having different data rate characteristics while sharing the same physical medium; enhanced flexibility and affordable attachment costs which are matched to the service needs of the station; inexpensive, incremental, timely, and nonintrusive network upgrades without global impact on the network; and high reliability due to the passive nature of the station attachment. >

6 citations


Journal ArticleDOI
01 Jan 1992
TL;DR: This paper describes a hybrid transmission method using sub-carrier multiplexing (SCM) and time division multiplexed (TDM) which seeks to reduce the overall complexity of the system, thereby lowering costs.
Abstract: Passive optical networks (PONs) are attractive for the provision of telephony via optical fibre in the local loop, and have generally tended to concentrate on the use of time-division multiple access for transmission. This paper describes a hybrid transmission method using sub-carrier multiplexing (SCM) and time division multiplexing (TDM) which seeks to reduce the overall complexity of the system, thereby lowering costs.

4 citations


Journal ArticleDOI
TL;DR: This paper describes a design of the physical layer of an “almost-all” optical local-area network that is capable of providing gigabit per second network access and discusses various implementation issues in the design of ODC, like opto-electronic amplification, clock distribution and clock-data synchronization, and reduction in the receiver dynamic range.
Abstract: The very high-speed access requirement that characterizes interactive and real-time high-performance applications like parallel processing, compressed video, or high-quality imaging, initiated a considerable interest in networks that provide a single user with a very high-speed network access. Coupled with this effort is the belief that optical networking can provide very high speed access, in addition to already utilized large aggregated bandwidth. In this paper, we examine the possibility of harvesting the optical spectrum to provide high-speed access networking capability in local-area environment in a way that is economically justifiable. In particular, we describe a design of the physical layer of an “almost-all” optical local-area network that is capable of providing gigabit per second network access. The network design is based on the dual-bus topology, the field-coding technique that was reported by us earlier (in which the header and the data fields are encoded at different rates), and the principle of “almost-all” optical switching. The field-coding technique allows integration of several subnets on the same physical medium. Moreover, we show that because of the field-coding technique, the maximal number of stations on the bus before signal amplification is required is doubled in the limit. Furthermore, we discuss various implementation issues in the design of ODC, like opto-electronic amplification, clock distribution and clock-data synchronization, and reduction in the receiver dynamic range.

3 citations


22 May 1992
TL;DR: In this paper, the authors review the design, implementation and paths to exploiting optical fiber bandwidth and report experimental network measurements on installed fiber using fiber amplifiers and optical switches, as well as optical switches.
Abstract: : Network design, implementation and paths to exploiting optical fibre bandwidth are reviewed. Experimental network measurements on installed fibre are reported using fibre amplifiers and optical switches.

2 citations


Proceedings ArticleDOI
01 Mar 1992
TL;DR: In this paper, details of network restoration techniques relying on diverse fiber routing and intelligent optical switches are given, as well as a detailed description of the back-hoe fade and its effects on optical fiber networks.
Abstract: Due to the increasing infromation capacity of optical fibernetworks the need for immediate restoration has become a necessity. The fiber cut or `back-hoe fade' is now a significant factor to network design and implementation. In this paper details of network restoration techniques relying on diverse fiber routing and intelligent optical switches are given.© (1992) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

1 citations


Proceedings ArticleDOI
14 Jun 1992
TL;DR: The authors consider the provision of a cordless telephony service over a passive optical network (PON) using fiber-radio techniques and results are presented and used to predict the performance over higher split optical networks.
Abstract: The authors consider the provision of a cordless telephony service over a passive optical network (PON) using fiber-radio techniques. Results from a practical demonstration of a cordless telephony service, using CT2 (second generation cordless telephone) technology, over an eight-way split PON are also presented and used to predict the performance over higher split optical networks. >

1 citations


Proceedings ArticleDOI
17 Sep 1992
TL;DR: The authors present the design, implementation, and results obtained with local area networks (LANs) such as ARCNet and Ethernet, and with modems or extenders for RS-232/RS-423/ RS-422 and IEEE Std 488 which use an IR link.
Abstract: Data communication systems that use infrared (IR) systems are discussed. The authors present the design, implementation, and results obtained with local area networks (LANs) such as ARCNet and Ethernet, and with modems or extenders for RS-232/RS-423/RS-422 (115200 Bd) and IEEE Std 488 which use an IR link. The systems use an IR emitting diode (IRED) as an optical source and a PIN photodiode as a photodetector. The study of the receiver sensitivity is outlined, and the system implementation is described. >

1 citations


Proceedings ArticleDOI
17 Dec 1992-Fibers
TL;DR: This paper will review a few current implementations of very high-speed networks as a background context, and describe several prototype optical networks, using WDM optical techniques to create multiple concurrent channels in the same fiber.
Abstract: What is multigigabit optical networking? This is a term we are using loosely to refer to the networks with multiple gigabit data channels in order to distinguish them from networks whose aggregate bit rate is on the order of 1 Gbit/s. Current computer networks, such as Ethernet, FDDI, and DQDB, suffer from lack of concurrency: at a given time, only a small number (typically one) of computers can transmit new information into the network. Therefore, each computer has to operate at the network aggregate speed, although effectively it has access only to a fraction of that bandwidth. To achieve gigabits/sec throughput, the next generation of computer networks will have to provide multiple high-speed concurrent channels to the nodes. One way to achieve concurrency is to use electronic switching, thereby placing the burden on the switch rather than each computer. Another direction is to place the burden on the optical hardware. Optical transport facilities have been recognized as an excellent choice for gigabits/sec networks due to the high bandwidths and long distances that can be reached. Moreover, WDM optical techniques allow multiple concurrent channels to be created in the same fiber, and with tunable transceivers one can potentially create networks whose topology changes dynamically in response to changing traffic patterns. In this paper, we will review a few current implementations of very high-speed networks as a background context, and then describe several prototype optical networks.

Proceedings ArticleDOI
28 Oct 1992
TL;DR: In this paper, a splitter-based passive optical network (PON) system is presented, which uses 1 X 8 optical couplers to form an 8-way split optical network, capable of delivering 24 digital speech channels over one pair of optical fibers.
Abstract: A subscriber system of optical fiber network is presented. We address the design principles of the splitter-based passive optical network (PON) system developed by Telecommunication Laboratories (TL). The splitter-based PON architecture benefits from sharing optoelectronics and optical loop plants over a number of optical network units (ONUs). The PON system uses 1 X 8 optical couplers to form an 8-way split optical network. The system is capable of delivering 24 digital speech channels over one pair of optical fibers.© (1992) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.