High Efficiency Erbium-Doped Fibers and High Performance Optical Components for Optical Fiber Amplifiers (Special Issue on Optical Fiber Cables and Related Technologies)

概要

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By optimizing the structure of erbium-doped fibers, high efficiency such as a gain coefficient of 6.3 dB/mW, or a slope efficiency of 92.6% have been realized with very flat wavelength dependence. Though the optimized structure has high NA, the splice loss with standard fibers can be lowered by the additional arc technique. The carbon coated fiber with a fatigue parameter over 150 guarantees the reliability, even when wounded on a small coil. In-line isolators and WDM couplers have been also developed. An amplifier module has been assembled, resulting in an output power more than +16 dBm owing to the high performance of each component.
社団法人電子情報通信学会の論文
1993-04-25