10G-PON

About: 10G-PON is a research topic. Over the lifetime, 1675 publications have been published within this topic receiving 27843 citations. The topic is also known as: XG-PON.

Supporting the rollout of broadband in Europe: optical network research in the IST program

Abstract: The introduction of affordable broadband services and applications will drive the next phase of deployment of optical networks. Research on optical networks and related photonics technologies, which has been a key element of the European Union's Research Programs over the past 15 years, has evolved in line with industry and market developments, and will continue, with a strong focus on broadband, in the Information Society Technologies (IST) priority of the new Framework Six Program. The infrastructure to deliver "broadband for all" is seen as the key future direction for optical networking, and the key growth market for industry.

Experimental study of Type B protection for a TWDM-PON system [invited]

Abstract: A passive optical network (PON) protection scheme is needed to ensure the system reliability required for business use, as PON is based on sharing a single fiber via an optical distribution network. Protection switching time is an important factor for business applications because it defines the service outage duration when a failure occurs. In this paper, we propose a PON protection scheme that enables the service outage duration to be reduced. We demonstrate Type B protection for a time and wavelength division multiplexed PON system and discuss the service outage duration.

Optical switch emulation in programmable software router testbed

Abstract: A programmable optical router is a key enabler for dynamic service provisioning in Future Internet scenarios. It is equipped with optical switching hardware to forward information at hundreds of Gigabits/s rates and above, controlled and managed through modular and flexible procedures according to emerging standards. The possibility to test such costly optical architectures in terms of logical and physical performance, without implementing complex and expensive testbeds, is crucial to speed-up the development process of high-performance routers. To this purpose, this paper introduces the software-based emulation testbed of a programmable optical router, which is here developed and applied to test optical switching fabrics. Accurate characterization of the optical devices and physical layer aspects is implemented with the Click software router environment. Power loss and optical signal-to-noise-ratio evaluation are provided through accurate software representation of the physical characteristics of the optical devices employed. The scalability of the proposed emulation testbed is also assessed on standard PC hardware. All the obtained results prove the effectiveness of the proposed tool to emulate an optical router at different levels of granularity.

Designing an Optical Island in the Core Network: From Routing to Spectrum Allocation

Abstract: We consider a network design problem arising in the development of an all-optical future generation Internet network called a flex-grid. An optical island is a set of core nodes that can be fully interconnected by transparent wavelength routes. We present a mathematical model for finding an optimal optical island, show that it is an NP-hard problem, and present a decomposition for solving it. In a first phase, we choose network links and route the traffic over the resulting network. In the second phase, we allocate the light-paths associated with the traffic requests to individual fibres and spectrum segments on the fibres. This so-called routing and spectrum assignment (RSA) problem is a generalisation of the well-known routing and wavelength assignment problem (RWA) of conventional optical networks. Flex-grid optical networks allow us to bundle higher capacity connection requests by allocating channels in a number of contiguous frequency slots, providing increased throughput, as long as the connection length is below technological limits. We solve the first part of the decomposition with a large neighborhood search, and the second with a CP model using a single GEOST global constraint. Results for Ireland and Italy show that solutions of high quality can be found by this decomposition.

TWDM-PON-AN optical backhaul solution for hybrid optical wireless networks

Abstract: To improve the performance of broadband access networks Full Service Access Network selected Time and wavelength division multiplexed Passive Optical Network (TWDM-PON) as the primary solution for next-generation optical access (Next-Generation Passive Optical Networks 2 (NGPON2)). This paper reviews the recent progress in this access technology. Different possible solutions for the-next generation access are explained. Comparison of the different TWDM architectures experimentally demonstrated so far is made considering the large split, long reach and high capacity requirements of NGPON2. Major technical challenges in implementing the TWDM networks are discussed. Possible options for designing hybrid wireless–wireline architectures are explained taking care of the high bandwidth provided by the optical networks and high mobility of wireless networks. Also an integrated optical wireless architecture is suggested using TWDM-PON as an optical backhaul.