光通信インフラの飛躍的な高度化に関する特別研究専門委員会

ECOC2012 Sunday Workshop
WS10:Optical components and characterisation requirements for SDM networks †

和名：　ECOC2012 ワークショップ,WS10 †

日時：　2012年9月16日（日） †

会場：　オランダ、アムステルダム、RAI congress centre †

協催：　ModeGap Project、EXAT研究会 †

概要 †

Progress in optical communication systems over the past few decades has been profound. As a consequence of successive breakthroughs, both in terms of photonic and more recently digital signal processing technologies, the latest laboratory transmission experiments are rapidly closing in on fundamental transmission capacity limits as dictated by optical nonlinearity, amplifier bandwidth and fundamental information theory. At the same time, traffic on the world’s optical communication networks is increasing by ~40% year-on-year, leading to fears of a potential capacity crunch in the next decade or so without radical innovation at the physical layer. The only remaining physical dimension left to be exploited to significantly increase the data capacity of a single fiber is space. Current commercial technologies exploit just two polarization modes in a single-mode fiber core; however multiple cores, or multiple modes within the same core, or a combination of both, could in principle be used as separate independent information channels - the general approach being referred to as Space Division Multiplexing (SDM). Unfortunately, whilst conceptually simple, SDM is extremely challenging in practice, requiring the development of new concepts, transmission fibers and associated optical components, as well as new digital signal processing strategies, algorithms and circuitry. Major programs on SDM have been launched across the globe in the past 2-3 years and the progress has been extremely rapid. To date attention has focused mostly on headline transmission results, and there have been numerous symposia and workshops focussing primarily on underlying concepts, fibre design or overall system achievements. However, underpinning this progress is a vast array of work on the critical component technologies required, including multiplexing and demultiplexing devices, optical amplifiers, as well as the associated device and fiber characterization techniques which can become extremely challenging in a multipath environment. The development of reliable, manufacturable and scalable components to the required specifications is obviously a pre-requisite for commercial deployment of SDM systems. However, to date, such aspects have yet to receive much consideration within the broader communications community. This Workshop, co-organised and sponsored by EU FP7 project MODEGAP and the EXAT program, Japan, will review and discuss the optical component requirements and specifications emerging from the latest SDM transmission experiments – considering both multi-mode and multi-core based approaches. It will also address the associated need for new measurement techniques and procedures as required to quantify and specify device and subsystem performance. In particular we will consider topics such as channel Mux/Demux, optical isolation and amplification, and routes to device integration and reduction of the system complexity, as well as approaches to measure critical parameters such as channel extinction ratios, discrete and distributed mode couplings, modal amplifier gain and noise figure, and modal loss, dispersion and nonlinearity.

プログラム †

その他 †

ECOC2012 Sunday Workshop

問い合わせ先 †

幹事　福知　清（NEC）
	TEL:044-396-2816、FAX:044-435-1096
      松尾　昌一郎（フジクラ）
	TEL:043-484-2197、FAX:043-481-1210
	E-mail:exat-contact@mail.ieice.org

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