Title :
Novel optical hybrid line configuration for quasi-lossless transmission by distributed Raman amplification
Author :
Okuno, Toshiaki ; Tsuzaki, Tetsufumi ; Nishimura, Masayuki
Author_Institution :
Res. Labs., Sumitomo Electr. Ind. Ltd., Yokohama, Japan
Abstract :
We propose a novel lossless transmission line configuration which exhibits significantly small signal power variation along the line by Raman amplification. A hybrid line consisting of two fibers with different Raman gain properties is theoretically investigated, and it is shown that signal power deviation can be suppressed to only 1.2 dB in a 50-km span. Validity of the proposed hybrid line is confirmed by experiments.
Keywords :
Raman lasers; optical fibre amplifiers; optical fibre communication; optical fibre losses; optical fibre testing; optical pumping; optical time-domain reflectometry; 50 km; Raman amplification; Raman gain properties; distributed Raman amplification; lossless transmission line configuration; optical hybrid line configuration; quasi-lossless transmission; signal power deviation suppression; small signal power variation; Optical attenuators; Optical fiber communication; Optical fiber losses; Optical fibers; Optical pumping; Optical scattering; Power transmission lines; Propagation losses; Stimulated emission; Transmission line theory;
Journal_Title :
Photonics Technology Letters, IEEE
