Title :
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
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;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2014.2361606
