Jung Y, Kang Q, Sleiffer V A J M, Inan B, Kuschnerov M, Veljanovski V, Corbett B, Winfield R, Li Z, Teh P S, Dhar A, Sahu J, Poletti F, Alam S-U, Richardson D J
Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, UK.
Opt Express. 2013 Apr 22;21(8):10383-92. doi: 10.1364/OE.21.010383.
We successfully fabricate three-mode erbium doped fiber with a confined Er(3+) doped ring structure and experimentally characterize the amplifier performance with a view to mode-division multiplexed (MDM) transmission. The differential modal gain was effectively mitigated by controlling the relative thickness of the ring-doped layer in the active fiber and pump launch conditions. A detailed study of the modal gain properties, amplifier performance in a MDM transmission system and inter-modal cross-gain modulation and associated transient effects is presented.
我们成功制造了具有受限铒（Er(3+)）掺杂环形结构的三模掺铒光纤，并通过实验表征了放大器性能，以用于模分复用（MDM）传输。通过控制有源光纤中环形掺杂层的相对厚度和泵浦注入条件，有效减轻了差分模态增益。本文详细研究了模态增益特性、MDM传输系统中的放大器性能以及模间交叉增益调制和相关的瞬态效应。
