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All-Optical Signal Processing in Structured Light Multiplexing with Dielectric Meta-Optics
ACS Photonics ( IF 6.5 ) Pub Date : 2019-12-26 , DOI: 10.1021/acsphotonics.9b01292 Yanliang He 1 , Peipei Wang 1 , Chaofeng Wang 1 , Junmin Liu 2 , Huapeng Ye 3 , Xinxing Zhou 4 , Ying Li 1 , Shuqing Chen 1 , Xiaomin Zhang 5 , Dianyuan Fan 1
ACS Photonics ( IF 6.5 ) Pub Date : 2019-12-26 , DOI: 10.1021/acsphotonics.9b01292 Yanliang He 1 , Peipei Wang 1 , Chaofeng Wang 1 , Junmin Liu 2 , Huapeng Ye 3 , Xinxing Zhou 4 , Ying Li 1 , Shuqing Chen 1 , Xiaomin Zhang 5 , Dianyuan Fan 1
Affiliation
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Structured light beams (SLBs) with spatially nonuniform phase or polarization distributions have attracted enormous interest in optical multiplexing communications due to the mutual orthogonality of orbital angular momentum (OAM) and vector modes. Here the experimental prototype for mode signal processing, all-dielectric Pancharatnam-Berry (P–B) phase-based metasurface (PBM), is demonstrated. The P–B phase involved with dispersion-free characteristics and spin–orbital interactions rewards the PBM, a naturally broadband working wavelength ranging from telecom C- to L-band and is capable of converting OAM and vector mode simultaneously. Moreover, the order of OAM and vector modes can be flexibly adjusted by designing the q-value of PBM. Based on these features, the all-optical processing (mode exchange, retrieving, and conversion) of both the multiplexed OAM- and vector-modes carrying 50 Gbit/s quadrature-phase shift-keying (QPSK) signals are successfully performed, and the bit error rates approach 1 × 10–6 for all the mode channels. It is anticipated that this all-dielectric PBM may open new avenues for all-optical information processing, optical interconnecting systems, and so on.
中文翻译：
介质亚光学结构光复用中的全光信号处理
由于轨道角动量（OAM）和矢量模式的相互正交性，具有空间上不均匀的相位或偏振分布的结构化光束（SLB）在光学多路复用通信中引起了极大的兴趣。这里展示了用于模式信号处理的实验原型，即全介电的Pancharatnam-Berry（PB）相基超表面（PBM）。具有无色散特性和自旋轨道相互作用的PB相位对PBM产生了奖励，PBM是一种从电信C波段到L波段的自然宽带工作波长，能够同时转换OAM和矢量模式。此外，通过设计q，可以灵活地调整OAM和矢量模式的顺序。-PBM值。基于这些功能，对载有50 Gbit / s正交相移键控（QPSK）信号的复用OAM模式和矢量模式进行了全光处理（模式交换，检索和转换），并且所有模式通道的误码率均接近1×10 –6。可以预期，这种全电介质PBM可能会为全光信息处理，光互连系统等开辟新的途径。
更新日期：2019-12-27
中文翻译：
介质亚光学结构光复用中的全光信号处理
由于轨道角动量（OAM）和矢量模式的相互正交性，具有空间上不均匀的相位或偏振分布的结构化光束（SLB）在光学多路复用通信中引起了极大的兴趣。这里展示了用于模式信号处理的实验原型，即全介电的Pancharatnam-Berry（PB）相基超表面（PBM）。具有无色散特性和自旋轨道相互作用的PB相位对PBM产生了奖励，PBM是一种从电信C波段到L波段的自然宽带工作波长，能够同时转换OAM和矢量模式。此外，通过设计q，可以灵活地调整OAM和矢量模式的顺序。-PBM值。基于这些功能，对载有50 Gbit / s正交相移键控（QPSK）信号的复用OAM模式和矢量模式进行了全光处理（模式交换，检索和转换），并且所有模式通道的误码率均接近1×10 –6。可以预期，这种全电介质PBM可能会为全光信息处理，光互连系统等开辟新的途径。
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