Fiber Optical Parametric Amplifier Performance in a 1-Tb/s DWDM Communication System
Fiber Optical Parametric Amplifier Performance in a 1-Tb/s DWDM Communication System
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DOI：
10.1109/jstqe.2011.2160155
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发表时间：
2012-03-01
影响因子：
4.9
通讯作者：
Marhic, Michel E.
中科院分区：
文献类型：
--
作者：
El Dahdah, Nayla;Govan, Donald S.;Marhic, Michel E.
采用短非线性光纤作为增益介质和高功率泵浦，降低了光纤参量放大器（OPA）中的信号-信号四波混频串扰。这使我们能够获得小于1 dB的惩罚，放大26密集波分复用（WDM）信道调制在43.7 Gb/s返回到零差分相移键控，与OPA之间的发射机和接收机。然后，我们在长距离传输系统的几个不同角色中使用相同的OPA。我们没有在循环中插入OPA，而是通过使用少量循环再循环的等效结果间接研究了OPA的作用。我们发现，标准的掺铒光纤放大器目前拥有优势，这种OPA，这变得微不足道的长距离。本文表明，在这个时候，OPA可以处理放大的WDM流量超过1 Tb/s，几乎没有退化。这也表明，随着进一步的改进，光纤OPA可能是未来光通信网络中宽带放大的竞争者。
We have reduced signal-signal four-wave mixing crosstalk in a fiber optical parametric amplifier (OPA) by using a short nonlinear fiber for the gain medium and a high-power pump. This allowed us to obtain less than 1 dB penalty for amplification of 26 dense wavelength-division multiplexed (WDM) channels modulated at 43.7 Gb/s return to zero-differential phase-shift keying, with the OPA placed between transmitter and receiver. We then used the same OPA in several different roles for a long-haul transmission system. We did not insert the OPA within the loop, but investigated this role indirectly by using equivalent results for small numbers of loop recirculations. We found that standard erbium-doped fiber amplifiers currently hold an advantage over this OPA, which becomes negligible for long distances. This paper shows that at this time OPAs can handle amplification of WDM traffic in excess of 1 Tb/s with little degradation. It also indicates that with further improvements, fiber OPAs could be a contender for wideband amplification in future optical communication networks.