A Review of Optical Communication link design...

A Review of Optical Communication link design using EDFA

Author Name : Payal, Dr. (Col.) Suresh Kumar, Deepak Sharma

ABSTRACT: Optical fiber communication offers large bandwidth for data transmission at higher rates. However, the fiber channel is capable of transmitting data at the rate of terabits-per-second. For point to point communication, adding more and more fibers to the system for increasing data throughput is uneconomical. Erbium-Doped Fiber Amplifiers (EDFA) are by far the most important fiber amplifiers for long-range optical fiber communication networks. EDFA can efficiently amplify light at 1.3 to 1.7 μm wavelength region. In case of multi-wavelength signals, if the EDFA has enough pump energy available to it, it can amplify the multiplexed optical signals falling into its amplification band. These properties of EDFAs have enabled us to use Wave Length Division Multiplexing (WDM), Dense WDM (DWDM) technique, which uses denser channel spacing in order to achieve even higher bit rates for long haul communication link. EDFA also increases the operation flexibility by reducing different types of losses in optical fiber communication system. In this present paper, performance analysis of optical link using EDFA has been explored in details. Also it focusses on different technologies used for analyzing the performance of EDFA with respect to various wavelengths and data rates. This will help the researcher to get the information related to EDFA at a single platform and help them to continue their work in area of interest.