Devices, communication techniques and networks for all optical communication: research issues

Abstract

The characteristics of all optical networks such as high speed, data carrying capacity and transparency make them suitable for emerged networks domain. This paper presents an overview of research challenges in the field of all optical communication networks. Various subdomains of an all optical system, for example device-level designs, communication technique-level designs and network-level designs have been extensively investigated and presented in this paper. Further, the related research issues under each category of these domains have been discussed. These issues constitute the basic criterion for further development in all optical domain.

Ultrafast All-Optical Switching Using Doped Chromoprotein Films

“…Alloptical solutions are preferred to avoid any unnecessary delay in signal processing. 3,6 Modulation and routing can also utilize nonlinear optical (NLO) materials exhibiting large, rapid lightinduced change in their absorption or refractive index. 7 Besides testing relatively well-known NLO solid-state materials, such as silicon, lithium-niobate, 8 chalcogenide glasses, 9 and widebandgap semiconductor waveguides, 5 engineering of novel 2D materials 10,11 is also underway but still far from practical applications.…”

“…The exponential growth of Internet traffic carrying optically coded data trains (packets) requires telecommunication channels with Tbit/s rate and a corresponding sub-picosecond switching speed. − At Internet nodes, where high switching speed and repetition rate are especially important, currently so-called optical transceiver modules are used as electrical–optical interfaces with accompanying multiple conversions between optical and electric coding along an information channel. All-optical solutions are preferred to avoid any unnecessary delay in signal processing. , Modulation and routing can also utilize nonlinear optical (NLO) materials exhibiting large, rapid light-induced change in their absorption or refractive index . Besides testing relatively well-known NLO solid-state materials, such as silicon, lithium-niobate, chalcogenide glasses, and wide-bandgap semiconductor waveguides, engineering of novel 2D materials , is also underway but still far from practical applications.…”