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Optics Letters

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  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 9 — May. 1, 2014
  • pp: 2652–2655

Generating the orbital angular momentum of radio frequency signals using optical-true-time-delay unit based on optical spectrum processor

Xinlu Gao, Shanguo Huang, Yunlong Song, Shangyuan Li, Yongfeng Wei, Jing Zhou, Xiaoping Zheng, Hanyi Zhang, and Wanyi Gu  »View Author Affiliations


Optics Letters, Vol. 39, Issue 9, pp. 2652-2655 (2014)
http://dx.doi.org/10.1364/OL.39.002652


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Abstract

A system for generating radio frequency signals with orbital angular momentum (OAM) is proposed and certificated for the first time, which employs an array of multiple optical-true-time-delay elements and circular antennas array (CAAs). A constructive Fourier series theory about CAAs collectively forming an OAM radio beam is demonstrated. An optical spectrum processor offers the four lines high-resolution time delay by adding a series of linear optical phase shifts. The OAM radio beam with topological charge L=1 is produced and measured successfully.

© 2014 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(140.3490) Lasers and laser optics : Lasers, distributed-feedback
(060.5625) Fiber optics and optical communications : Radio frequency photonics

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: January 24, 2014
Revised Manuscript: March 16, 2014
Manuscript Accepted: March 28, 2014
Published: April 22, 2014

Citation
Xinlu Gao, Shanguo Huang, Yunlong Song, Shangyuan Li, Yongfeng Wei, Jing Zhou, Xiaoping Zheng, Hanyi Zhang, and Wanyi Gu, "Generating the orbital angular momentum of radio frequency signals using optical-true-time-delay unit based on optical spectrum processor," Opt. Lett. 39, 2652-2655 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-9-2652


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