A multi-wavelength fiber laser based on superimposed fiber grating and chirp fiber Bragg grating for wavelength selection |
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| Authors: | WANG Feng BI Wei-hong FU Xing-hu JIANG Peng WU Yang |
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| Affiliation: | College of Mechanical and Electrical Engineering, Hebei Normal University of Science & Technology, Qinhuangdao 066004, China;School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China;School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China;The Key Laboratory for Special Fiber and Fiber Sensor of Heibei Province, Qinhuangdao 066004, China;School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China;The Key Laboratory for Special Fiber and Fiber Sensor of Heibei Province, Qinhuangdao 066004, China;School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China;School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China |
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| Abstract: | In this paper, a new type of multi-wavelength fiber laser is proposed and demonstrated experimentally. Superimposed fiber grating (SIFG) and chirp fiber Bragg grating (CFBG) are used for wavelength selection. Based on gain equalization technology, by finely adjusting the stress device in the cavity, the gain and loss are equal, so as to suppress the modal competition and achieve multi-wavelength lasing at room temperature. The experimental results show that the laser can output stable multi-wavelength lasers simultaneously. The laser coupling loss is small, the structure is simple, and it is convenient for integration, so it can be widely used in dense wavelength division multiplexing (DWDM) system and optical fiber sensors. |
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