Vol. 45, Issue 3, pp. 381-391

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  2. Optica Applicata Vol. 45, Issue 3, pp. 381-391 (2015)
Vol. 45 Issue 3 pp. 381-391

A novel approach to photonic generation of periodic triangular radio frequency waveforms

Peng Xiang, Hao Guo, Dalei Chen, Huatao Zhu, Chuanxin Wu

Keywords

microwave photonics, triangular waveform, polarization modulator (PolM), microwave photonic filter (MPF), radio frequency (RF) waveform generation

Abstract

A novel approach to photonic generation of triangular radio frequency waveforms with a tunable repetition rate is proposed and analyzed. In the proposed system, a continuous-wave light is modulated by a reference microwave signal through a polarization modulator, and then its output optical sidebands are manipulated by a microwave photonic filter with a negative tap. By properly adjusting the system parameters, full-duty-cycle triangular radio frequency waveforms can be generated after optical-to-electrical conversion, and its repetition rate (frequency) can be tuned in a wide range. A model describing the proposed system is derived, which is verified via computer simulations.

Vol. 45
Issue 3
pp. 381-391

0.38 MB
OPTICA APPLICATA - a quarterly of the Wrocław University of Science and Technology, Faculty of Fundamental Problems of Technology