Effective single-mode transmission at wavelengths shorter than the cutoff wavelength of an optical fiber
Effective single-mode transmission at wavelengths shorter than the cutoff wavelength of an optical fiber
复制标题
波长短于光纤截止波长的有效单模传输
DOI：
10.1109/lpt.2005.859166
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发表时间：
2005
影响因子：
2.6
通讯作者：
D. Kim
中科院分区：
文献类型：
--
作者：
S. Moon;D. Kim
我们提出了一种新的传输方案，扩展传统的单模光纤（C-SMF）的单模工作范围的波长短于截止波长。它涉及使用锥形光纤模式滤波器（MF），以便从C-SMF中去除高阶模功率，从而使光纤作为虚拟单模传输链路工作。在850和980 nm波长下，用所制作的锥形光纤MF实现了10 dB以上的高阶模抑制。我们还证明了该技术的可行性，通过评估的传输质量与MF在850 nm通过5公里的C-SMF具有1.2 /spl μ/m的截止波长。
We propose a novel transmission scheme to extend the single-mode operation range of a conventional single-mode fiber (C-SMF) to wavelengths shorter than the cutoff wavelength. It involves the use of a tapered-fiber mode filter (MF) in order to remove the high-order-mode power from the C-SMF and hence, makes the fiber work as a virtually single-mode transmission link. High-order mode suppression of above 10 dB has been achieved at wavelengths of 850 and 980 nm with a fabricated tapered-fiber MF. We have also demonstrated the feasibility of the technique by evaluating the transmission quality with the MF at 850 nm through a 5-km C-SMF having a cutoff wavelength of 1.2 /spl mu/m.