Photonic generation of microwave signal using a dual-wavelength single-longitudinal-mode distributed Bragg reflector fiber laser |
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| Authors: | Hao Zhang Bo Liu Jianhua Luo Jing Sun Xiurong Ma Chenglai Jia Shuangxia Wang |
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| Affiliation: | aKey Laboratory of Opto-Electronic Information and Technology, Ministry of Education, Institute of Modern Optics, Nankai University, Tianjin 300071, PR China;bCollege of Information Technical Science, Nankai University, Tianjin 300071, PR China;cSchool of Electronics Information Engineering, Tianjin University of Technology, Tianjin 300191, PR China |
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| Abstract: | In this paper, a novel all-optical microwave generation technique based on a dual-wavelength single-longitudinal-mode (SLM) distributed Bragg reflector (DBR) fiber laser is proposed and demonstrated. By exploiting spatial hole burning (SHB) effect, this laser could provide stable dual-wavelength SLM operation with a wavelength separation of  0.088 nm corresponding to the microwave signal at 10.484 GHz with a 3 dB bandwidth of 28 kHz. By appropriately adjusting the pump power, dual-wavelength oscillation could be maintained at different temperatures. We have theoretically analyzed the mechanism for microwave generation of the proposed DBR laser, and the calculated microwave frequency is in good agreement with our experimental results. Furthermore, experimental observation shows both of the laser wavelengths and generated microwave signals have good stability at room temperature. |
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| Keywords: | Photonic generation of microwave signal Dual-wavelength Single-longitudinal-mode Distributed Bragg reflector Fiber laser |
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