Massive individual orbital angular momentum channels for multiplexing enabled by Dammann gratings

Ting Lei; Meng Zhang; Yuru Li; Ping Jia; Gordon Ning Liu; Xiaogeng Xu; Zhaohui Li; Changjun Min; Jiao Lin; Changyuan Yu; Hanben Niu; Xiaocong Yuan

doi:10.1038/lsa.2015.30

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Massive individual orbital angular momentum channels for multiplexing enabled by Dammann gratings

Original Articles

- Massive individual orbital angular momentum channels for multiplexing enabled by Dammann gratings
- Light: Science & Applications Vol. 4, Issue 2, (2015)
- Affiliations：
  
  1.Institute of Micro & Nano Optics, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
  2.Institute of Modern Optics, Nankai University, Tianjin 300071, China
  3.Institute of Photonics Technology, Jinan University, Guangzhou 510632, China
  4.Huawei Technologies Co., Ltd, Shenzhen 518129, China
  5.School of Physics, University of Melbourne, VIC 3010, Australia
  6.Department of Electrical and Computer Engineering, National University of Singapore, 117576, Singapore
- Author bio：
  
  ZH Li, Institute of Photonics Technology, Jinan University, Guangzhou 510632, ChinaE-mail: tlzh88@jnu.edu.cn
  XC Yuan, Institute of Micro & Nano Optics, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of OptoelectronicEngineering, Shenzhen University, Shenzhen 518060, ChinaE-mail: xcyuan@szu.edu.cn
- Funds：
- DOI：10.1038/lsa.2015.30
  CLC：
- Published：2015-06，
  
  Published Online：18 December 2014，
  
  Received：25 August 2014，
  
  Revised：16 December 2014，
  
  Accepted：18 December 2014
- Accepted：
Scan QR Code
Lei, T. et al. Massive individual orbital angular momentum channels for multiplexing enabled by Dammann gratings. Light: Science & Applications, 4, e257 (2015).
DOI：

Lei, T. et al. Massive individual orbital angular momentum channels for multiplexing enabled by Dammann gratings. Light: Science & Applications, 4, e257 (2015). DOI： 10.1038/lsa.2015.30.

摘要

Abstract

Data transmission rates in optical communication systems are approaching the limits of conventional multiplexing methods. Orbital angular momentum (OAM) in optical vortex beams offers a new degree of freedom and the potential to increase the capacity of free-space optical communication systems

with OAM beams acting as information carriers for OAM division multiplexing (OAM-DM). We demonstrate independent collinear OAM channel generation

transmission and simultaneous detection using Dammann optical vortex gratings (DOVGs). We achieve 80/160 Tbit s

−1

capacity with uniform power distributions along all channels

with 1600 individually modulated quadrature phase-shift keying (QPSK)/16-QAM data channels multiplexed by 10 OAM states

80 wavelengths and two polarizations. DOVG-enabled OAM multiplexing technology removes the bottleneck of massive OAM state parallel detection and offers an opportunity to raise optical communication systems capacity to Pbit s

−1

level.

关键词

Keywords

holographic gratingsmultiplexingoptical communicationsorbital angular momentum

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