60 Gbps transmission with reduced power and lower frequency in lightwave systems using negative dispersion optical fiber

Abstract

Higher data rate transmission over longer distances is the need of this era where a huge number of communication users are being added up on a daily basis. This is not a easy task due to presence of fiber impairments which are of two types linear and non-linear. Dispersion occurs due to longer distances and high transmitting power of the light signals which ultimately degrades the received signal at the output side. This paper focuses on the removal of fiber non-linearities in lightwave systems for the transmission of 60 gbps data rate over varying transmission distances (150–850 km) with reduced power (0 dBm/1mW). Negative dispersion optical fiber i.e. MetroCor Optical Fiber is being used for this purpose instead of SMF-28 (Simple Mode Fiber) which provides an additional advantage of removing DCB (Dispersion Compensation Bank) and additional dispersion compensation techniques such as pre, post and symmetric can be avoided. Efficiency of overall system has been improved and BER (Bit Error Rate) is minimized. The relation between transmission distance, quality factor and BER has been focused.