Invited Article: Division and multiplication of the state order for data-carrying orbital angular momentum beams
Invited Article: Division and multiplication of the state order for data-carrying orbital angular momentum beams
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特邀文章：载有数据的轨道角动量束的状态阶的除法和乘法
DOI：
10.1063/1.4968838
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发表时间：
2016
影响因子：
4
通讯作者：
A. Willner
中科院分区：
文献类型：
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作者：
Zhe Zhao;Yongxiong Ren;G. Xie;Long Li;Yan Yan;N. Ahmed;Zhe Wang;Cong Liu;A. Willner;S. Ashrafi;A. Willner
我们对载数据轨道角动量光束的L态进行了全光学除法和乘法运算。我们使用对数极坐标和笛卡尔坐标之间的线性光学变换来：(I)将OAM态次序划分为2 L到L(L=−5，−4，…，+4，+5)，以及(Ii)将从L到2 L的OAM状态命令相乘。分析了经典双模OAM复用链路在OAM状态阶除乘情况下的OAM模式纯度和误码率性能。OAM态阶数减半和倍增的实验模式纯度分别可达87%和40%左右。在模拟中，我们进一步研究了OAM模式纯度与SLM的位移之间的关系。结果表明，OAM态级数加倍的变换比OAM态序减半的变换对位移的增大更为敏感。链路误码率低于前向纠错阈值3.8...
We demonstrate all-optical division and multiplication of the state order l for data-carrying orbital angular momentum (OAM) beams. We use linear optical transformations between log-polar and Cartesian coordinates to: (i) divide the OAM state order to convert the OAM order from 2 l to l ( l = −5, −4, …, +4, +5), and (ii) multiply the OAM state order from l to 2 l . We analyze the OAM mode purity and the bit-error-rate performance of a classical two-mode OAM multiplexed link for the case of division and multiplication of the OAM state order. The experimental mode purity for halving and doubling OAM state order can reach around 87% and 40%, respectively. We further study the dependence of the OAM mode purity on the displacement of SLMs in simulation. The obtained results show that the transformation for doubling the OAM state order is more sensitive to the increase of the displacement than that for halving the OAM state order. The link bit error rates are below the forward error correction threshold of 3.8 ...
影响因子：
35
作者：
Wang, Jian;Yang, Jeng-Yuan;Willner, Alan E.
通讯作者：
Willner, Alan E.