نتایج جستجو برای: optical fibre network
تعداد نتایج: 945957 فیلتر نتایج به سال:
Photonic sensors signal processors and communication technologies have emerged as viable alternatives to electronics. Fibre optic sensors have advanced to an extent that they can be readily made use of in many applications. The different types of fibre optic sensors, components used in optical fibre sensing, sensor design and analysis, distributed\ multiplexed sensor schemes and the roles of op...
Introduction: One of the key components in all-optical communication networks using the whole low-loss bandwidth of the silica fibre is an ultra-wideband wavelength converter [1]. Use of all-optical ultrawideband wavelength converters enhances network flexibility, allowing an all-optical wavelength conversion between different transmission windows, and therefore avoiding the bottleneck of optic...
All-optical packet switching has been intensively investigated in recent years as an alternative to static, crossconnect based networks. Several switch architectures have been proposed, all of them using buffers made of fibre delay lines. This paper addresses the basic concepts of the packet switching in the optical domain and describes an analytical approach to evaluate the end-to-end performa...
کلیدزنی یک عمل اساسی در شبکه های مخابراتی، کامپیوترهای رقمی و سیستم های پردازش سیگنال است. توسعه سیستم های مخابراتی نوری با نرخ بالای انتقال اطلاعات، نیاز به طراحی مدارهای منطقی و کلیدهای تمام نوری را بیش از پیش افزایش داده است. مزدوج های موازی غیرخطی یکی از عناصر نوری مهم جهت استفاده در ارتباطات و محاسبات اپتیکی است که باعث جذابیت های زیاد تحقیقاتی شده است. تعداد زیادی از کاربردهای این ابزار ...
Optical techniques developed for sensing purposes proved to be essential in many application fields, ranging from aerospace, industry, process control, to security, and also medicine. The capabilities of these sensors are generally enhanced when a bulk-optical configuration is replaced by optical fibre technology. In the past few years, research programmes and also the market for fibre sensors ...
The tremendous growth of the high speed Internet and data traffic has created an enormous demand for transmission bandwidth of dense wavelength division multiplexed (DWDM) optical communication systems. With the advancement of wideband fiber-optical amplifiers, DWDM optical transmission systems are capable of providing capacities in excess of hundreds of gigabits per second over hundreds of kil...
چکیده ندارد.
in this paper, we propose an optical millimetre wave radio-over-fibre (mm-wave rof) system that uses a dual drive mach zehnder modulator (dd-mzm), which is biased at the maximum transmission biasing point, to generate an optical double sideband-suppressed carrier. the input to the dd-mzm are binary phase shift keying (bpsk), quadrature phase shift keying (qpsk), 8-phase shift keying (8-psk) and...
The focal purpose of this thesis is to study chirality specifically in telecommunications area, through the pure chiral fibres (optical fibres constituted by chiral material) and chiral fibre grating (twisted optical fibre), analysing also its behaviour and applications. Nevertheless we shall also address this theme from an economical perspective. The study begins by giving a brief introduction...
The role of optical buffering in the development of all-optical cross-connects is discussed, followed by an analysis of fibre delay line implementations in optical buffers. It is shown that the traffic model plays an important part in the analyses of the systems, together with the traffic load, the use of internal buffer wavelengths, and the cross-connect architecture. Travelling buffers have s...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید