Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7926813 | Optics Communications | 2017 | 6 Pages |
Abstract
A polarization multiplexed dual-loop optoelectronic oscillator (OEO) based on stimulated Brillouin scattering (SBS) is theoretically analyzed and experimentally demonstrated. The narrow bandwidth of SBS gain spectrum is utilized to implement the phase modulation to intensity modulation conversion and select the oscillation mode of the OEO. The polarization multiplexed dual-loop is constructed to suppress the side modes with Vernier effect. The output frequency of the OEO can be tuned by changing the frequency of the signal or the pump light wave. With the polarization multiplexed dual-loop the side-mode suppression ratio (SMSR) of 45Â dB is achieved at 10Â GHz. The generated oscillation frequency is tuned from 4Â GHz to 16Â GHz by changing the frequency of the signal light wave. The phase noise decreases with the power increase of the signal light wave when it is under the threshold of SBS. By adjusting the polarization state of the light wave, the influence of the power distribution between the long loop and the short loop on the phase noise of the OEO is investigated. The results show that more power in the long loop is helpful to suppress the near end phase noise.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Xiuyou Han, Liang Ma, Yuchen Shao, Qing Ye, Yiying Gu, Mingshan Zhao,