Triangular Microwave Waveform Generation Based on Stimulated Brillouin Scattering

Author

Wen Hui Sun ; Wei Li ; Wen Ting Wang ; Wei Yu Wang ; Jian Guo Liu ; Ning Hua Zhu

Author_Institution

State Key Lab. on Integrated Optoelectron., Inst. of Semicond., Beijing, China

Volume

6

Issue

6

fYear

2014

fDate

Dec. 2014

Firstpage

1

Lastpage

7

Abstract

We proposed a new approach to generate full-duty-cycle triangular waveforms using a sinusoidal radio-frequency (RF) signal based on stimulated Brillouin scattering. In order to generate a triangular waveform, the even-order harmonics of the RF signal has to be removed. In our scheme, we use both the pump and Stokes waves to manipulate the amplitudes and phases of the optical components. In this way, the amplitudes and phases of the fundamental RF tone and its harmonics can be controlled. The proposed method is theoretically analyzed and experimentally verified. For a proof-of-concept demonstration, triangular waveforms at 8.5, 10.5, and 12.5 GHz are generated. The measured results agree well with the simulated ones.

Keywords

amplitude modulation; microwave generation; microwave photonics; optical harmonic generation; optical modulation; optical pumping; phase modulation; stimulated Brillouin scattering; Stokes waves; amplitude manipulation; bandwidth 8.5 GHz to 12.5 GHz; even-order harmonics; full-duty-cycle triangular waveforms; fundamental RF tone; harmonics; phase manipulation; pump waves; sinusoidal radiofrequency signal; stimulated Brillouin scattering; triangular microwave waveform generation; Microwave photonics; Optical attenuators; Optical fibers; Optical filters; Optical polarization; Optical pumping; Microwave photonics; stimulated Brillouin scattering (SBS); triangular waveforms;

fLanguage

English

Journal_Title

Photonics Journal, IEEE

Publisher

ieee

ISSN

1943-0655

Type

jour

DOI

10.1109/JPHOT.2014.2361606

Filename

6924724