A tunable narrow-line-width multi-wavelength Er-doped fiber laser based on a high birefringence fiber ring mirror and an auto-tracking filter |
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Authors: | Xiu-jie Jia Yan-ge Liu Li-bin Si Zhan-cheng Guo Sheng-gui Fu Gui-yun Kai Xiao-yi Dong |
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Affiliation: | Institute of Modern Optics, Nankai University, Tianjin 300071, China |
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Abstract: | A novel multi-wavelength erbium-doped fiber laser operating in C-band is proposed and successfully demonstrated. The wavelength interval between the wavelengths is about 0.22 nm. The 3 dB bandwidth of the laser is about 0.012 nm, and the output power reaches 4.8 mW. By using a high birefringence fiber ring mirror (HiBi-FLM) and a tunable FBG, the laser realizes switchable and tunable characteristic. The mode hopping can be effectively prevented. Moreover, this laser can improve wavelength stability significantly by taking advantage of an un-pumped Er3+-doped fiber at the standing-wave section. The laser can operate in stable narrow-line-width with single-, dual-wavelength, and unstable triple-wavelength output at room temperature. |
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Keywords: | 42.81.&minus i 42.55.W 42.60.Pk |
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