Volume 59, Issue 4 pp. 840-843
Research Article

Simplified microwave signal generation using carrier polarization-suppressed double sideband modulation and no optical filtering

Wenjing Xu

Corresponding Author

Wenjing Xu

State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, 100876 China

Corresponding author: [email protected]Search for more papers by this author
Xinlu Gao

Xinlu Gao

State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, 100876 China

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Wensheng Zhai

Wensheng Zhai

State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, 100876 China

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Mingyang Zhao

Mingyang Zhao

State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, 100876 China

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Mutong Xie

Mutong Xie

State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, 100876 China

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Shanguo Huang

Shanguo Huang

State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, 100876 China

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First published: 26 February 2017
Citations: 3

ABSTRACT

A simple and versatile method to realize optical generation of microwave signal using carrier polarization-suppressed double sideband modulation and no optical filtering is proposed and experimentally demonstrated. By simply adjusting the polarization direction of the polarizer, the optical carrier generated by the single-drive intensity modulator along one polarization direction is polarization-suppressed by the pure optical carrier along another orthogonal polarization direction. A high spectrum purity 20 GHz electrical signal with more than 36 dB optical harmonic distortion suppression ratio is generated when the driving signal is 10 GHz. The system is simple, cost-effective and fast frequency tuned as no optical filtering technique is required, which may be attractive to the radio over fiber system. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:840–843, 2017

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