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The paper presents the ECOC 2008 topics. The topics consists of fibres, fibre devices, fibre amplifiers, waveguide devices, optoelectronic devices, optical networks, transmission system, backbone networks, core networks, access network, local area network and optical communications.
A review of recent developments on fiber-optic parametric amplifiers will be given. Distinct features will be discussed and compared with other kinds of amplifiers. Different applications, including all-optical sampling, signal regeneration, all-optical switching, and add-drop multiplexing will be discussed in some detail.
Recently, slow light and stored light has been achieved in room temperature optical fibers at telecommunication wavelengths, which is accelerating the transition of these techniques to applications. This presentation will review the physics behind these fascinating effects and describe recent progress.
The modeling, fabrication and operation of recently demonstrated lasers employing metallic nano-cavities will be examined in this presentation. An overview will also be given of latest results from devices employing metal-insulator-metal structures with sub-wavelength dimensions. Finally future development directions, challenges and prospects for such lasers will be discussed.
Terahertz spectroscopy promises attractive applications in various fields. Commercial use requires compact, room temperature and cost effective THz systems. Mature InP technology and versatile fiber components here can pave the way. The paper gives an overview on recent developments on InP based optoelectronic THz components and 1.5 mum operated systems.
An optical isolator is fabricated for silicon-on-insulator circuits. The isolator, which employs a nonreciprocal phase shift in a Mach-Zehnder interferometer, is fabricated by directly bonding a magneto-optic garnet on a Si waveguide. A maximum isolation of 21 dB is obtained at 1559 nm.
Quadrature amplitude modulation (QAM) is an excellent modulation format for realizing optical communication systems with a high spectral efficiency of much greater that 1 bit/s/Hz. I describe recent progress on 1 Gsymbol/s, FDM (frequency division multiplexed)-QAM coherent transmission experiments by using heterodyne detection with a frequency-stabilized laser and an optical phase-locked loop technique.
New services and the evolution to a multimedia broadband internet are constantly requesting more bandwidth. Currently the data traffic doubles every year without having any saturation in sight. Increasing numbers of FTTx ports will lead to a global core network with petabit traffic, offering 10 Gbit/s access for everybody and everywhere. Supporting this data rate growth is an enormous challenge for...
We demonstrate all-optical pattern recognition using semiconductor optical amplifier logic gates. For the first time, target patterns up to 256 bits long were successfully recognised and located in 42 Gbit/s data.
An overview is given of ASON/GMPLS control plane capabilities and opportunities, the current status of standardisation as well as of application - control plane interworking solutions. Finally examples of practical implementations are highlighted from field trails in the frame of R&D activities up to carrier deployments.
We have successfully transmitted a three-channel frequency division multiplexed 1-Gsymbol/s, 64 QAM coherent optical signal over 160-km with a 1.4-GHz spacing. The spectral efficiency reaches as high as 8.6-bit/s/Hz.
Electronic post-processing techniques based on MLSE (maximum likelihood sequence detection) for the mitigation/compensation of fiber linear (CD, PMD) and non-linear (SPM and other intra-channel) propagation effects are reviewed, in conjunction with IMDD, DPSK and PSBT. Fundamental limitations and experimental validations are discussed. Specific application scenarios are addressed, including both uncompensated...
At present for the creation of Raman lasers and amplifiers for numerous applications various glass optical fibers and crystals are mainly used. In recent years silicon photonics technology has made rapid progress and Raman silicon lasers and amplifiers have been successfully demonstrated. Recent results on new Raman materials and devices are reviewed.
We demonstrate a monolithic wavelength converter based on a PD-EAM optical gate and tunable SGDBR laser operating at any bit rate up to 40 Gb/s in both NRZ and RZ formats.
Photonic technologies for data processing in the all-optical domain are expected to play a major role in future optical communications. Nonlinear effects in optical fibres have many attractive features and great, but not yet fully explored potential in optical signal processing. Here, our recent advances in developing novel techniques and approaches to all-optical processing based on fibre nonlinearities...
The optical performance monitoring technique is of critical importance for the continual advancement of dynamic WDM networks. This paper reviews its current status and future challenges.
Summary form only given. The problem of evaluating the maximum rate of transmission of information, or capacity, of fibre-optic communication systems is discussed. We will describe a procedure we developed to derive a lower bound capacity of the dasiafibre channelpsila. Spectral efficiency of ~5 bits/s/Hz over 2000 km in one polarization will be shown to be theoretically achievable.
Summary form only given. TAT-8 was the first optical transatlantic undersea system, starting a dramatic expansion of the global telecommunications network. This paper reviews the drivers and products that emerged since TAT-8 was developed, and looks at the close ties of the undersea transmission industry to the terrestrial long-haul network and transmission research.
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