| ZHAO Chunbo,TUOZhuoyue,YAOJiali,HE Yuling,ZHAI Shenghua,MENG Yansong.Observation of regular pulse train in a narrow-band optoelectronic oscillator[J].Optoelectronics Letters,2024,(2):94-99 |
| Observation of regular pulse train in a narrow-band optoelectronic oscillator |
| Author Name | Affiliation | | ZHAO Chunbo | China Academy of Space Technology Xi’an, Xi’an 710000, China | | TUOZhuoyue | China Academy of Space Technology Xi’an, Xi’an 710000, China | | YAOJiali | China Academy of Space Technology Xi’an, Xi’an 710000, China | | HE Yuling | China Academy of Space Technology Xi’an, Xi’an 710000, China
National Key Laboratory of Science and Technology on Space Microwave, Xi’an 710000, China | | ZHAI Shenghua | China Academy of Space Technology Xi’an, Xi’an 710000, China
National Key Laboratory of Science and Technology on Space Microwave, Xi’an 710000, China | | MENG Yansong | China Academy of Space Technology Xi’an, Xi’an 710000, China
National Key Laboratory of Science and Technology on Space Microwave, Xi’an 710000, China |
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| Abstract: |
| We have experimentally observed a new operating state of a regular pulse train in a narrow-band optoelectronic oscillator (OEO) system, where the direct-current (DC) bias of the Mach-Zehnder modulator is set at the maximum value of the transmission transfer function instead of the usual quadrature point. The observed quasi-steady-state pulse train is distinctly periodic, with a period of 10.5 ?s and a center frequency of 10 GHz, and resembles a mode-locked OEO in its waveform. The formation of regular pulses here may arise from the dynamic balance of nonlinearity and narrow-band filter effects, with the transient characteristics of the pulses arising mainly from instabilities between the gain and cavity loss. Our results are of great importance for deepening the understanding of the nonlinear dynamical processes in OEO systems. |
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