Volume holographic spatial mode demultiplexer with a dual-wavelength method.
Volume holographic spatial mode demultiplexer with a dual-wavelength method.
复制标题
采用双波长方法的体全息空间模式解复用器。
DOI：
10.1364/ao.57.000146
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发表时间：
2018
期刊：
影响因子：
1.9
通讯作者：
N. Wada
中科院分区：
文献类型：
--
作者：
Shimpei Shimizu;A. Okamoto;Fumiya Mizukawa;Kazuhisa Ogawa;A. Tomita;T. Takahata;S. Shinada;N. Wada
体全息解复用器（VHDMs）使用简单的光学系统提供空间模式解复用。然而，将VHDM应用于实际光通信系统是困难的，因为典型的全息介质在红外区域（包括光传输带）没有灵敏度。本文提出了一种结合双波长方法（DWM）的VHDM方案。使用DWM， VHDMs能够在光传输频带中执行模式解复用。我们通过实验证明了我们建议的基本操作，使用在850 nm波长进行的实验。此外，我们还通过数值模拟研究了VHDM在c波段的应用。
Volume holographic demultiplexers (VHDMs) provide spatial mode demultiplexing using simple optical systems. However, applying VHDM to practical optical communication systems is difficult, as typical holographic media have no sensitivity in the infrared region, which includes optical transmission bands. In this paper, we propose a VHDM scheme combined with a dual-wavelength method (DWM). Using the DWM, VHDMs are able to perform mode demultiplexing in the optical transmission bands. We experimentally demonstrated the basic operation of our proposal using experiments performed at an 850-nm wavelength. In addition, we performed numerical simulations to investigate the application of VHDM to the C-band.