Optical communication using optical fibres as the transmission medium is essential to handling the massive growth of both telecom and datacom traffic. To fully realize the potential bandwidth available on these optical fibres, other components of the optical network system have to be developed, ranging from detectors and multiplexers to buffers and switches. This book addresses the different technologies which can be applied to switching optical signals. An optical switch functions by selectively switching an optical signal delivered through an optical fibre or in an integrated optical circuit to another. Several methods are available and each relies on a different physical mechanism for its operation. The various physical mechanisms used are discussed in the main chapters in the book which cover electro-optical, thermo-optical, micro-electro-mechanical (MEMS)-based and semiconductor optical amplifier (SOA)-based optical switches. The book also covers switching based on optical nonlinear effects, liquid and photonic crystal optical switches as well as fibre, holographic, quantum optical and other types of optical switches. Each chapter discusses the choice of materials, fabrication techniques and key issues in switch design. With its distinguished editors and international team of contributors, Optical switches: materials and design is a standard reference for the telecommunications industry and those researching this important topic. Reviews this commercially significant area of research and addresses the different technologies which can be applied to switching optical signals Provides a balanced look at the developments which can be defined as key trends in optical switches Major optical switches including electro-optical, thermo optical and magneto-optical switches are discussed and the respective theory and principles of each explored
Because there is no need to transform opticalelectrical/electrical-optical signals at the interfaces, all-optical switches enable extremely efficient data transfer. This reduces power consumption and enhances operation speed.
Each island is composed of p electronic switches (S in the figure) and connects top nodes. p also represents the ... Finally, a K × K optical switch (circuit switching) allows to use fewer optical transceivers μ and to reconfigure the ...
Specifically, we willdescribe a noveloptically integratedaccess metronetwork, termed STARGATE, which is able to provide ... with Ethernet- based LANs but also with SONET/SDH-based metropolitan area networks (MANs) and wide area networks ...
1.1 Introduction to MeMs optical switch The optical switch is nowadays playing a significant role in optical communication networks. For example, in an all-optical network (AON), optical switches select the directions of the signal, ...
[17] N.F. Borrelli, C. Smith, D.C. Allan, T.P. Seward, Journal of Optical Physics B, vol. 14, page 1606-1615, 1997. [18] A. K. Mairaj, C. Riziotis, A. M. Chardon, P. G.R. Smith, D. P. Shepherd and D. W. Hewak, Applied Physics Letters, ...
Abstract-- In this presentation, we report on our recent development of erasable three-dimensional bit optical data ... than conventional two-dimensional (2-D) data storage systems such as compact discs (CD) and digital versatile discs ...
However , the optical output power of the device scales linearly with the optical input power . ... We will use the term optical switch as a general term for very different applications of optical nonlinearities , including optical ...
vary with channel permutations. Also, a large number of channels can be handled with the polarization multiplexing, two-dimensional port arrangement, and switching and routing element integration. Thus, this switch is suitable for ...
Such a switch is transparent to all protocols, data formats, and modulation formats since it only rearranges the physical fiber circuit. The various classes of optical switches include 1 × 2, 2 × 2, 1 × N, and large scale N × M matrix ...
Proceedings of the 4th International Conference on Group IV Photonics, Tokyo, Japan. ... Monolithic integration of near-infrared Ge photodetectors with Si complementary metal-oxide-semiconductor readout electronics.