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| Stable multi-wavelength thulium-doped fiber laser based on all-fiber Mach–Zehnder interferometer | |
| 作者姓名： | Peng Zhang Wanzhuo Ma Tianshu Wang Qingsong Jia Chunming Wan |
| 作者单位： | Peng Zhang:National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, Changchun 130022, China Wanzhuo Ma:National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, Changchun 130022, China Tianshu Wang:National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, Changchun 130022, ChinaCollege of Science, Changchun University of Science and Technology, Changchun 130022, China Qingsong Jia:National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, Changchun 130022, China Chunming Wan:College of Science, Changchun University of Science and Technology, Changchun 130022, China |
| 基金项目： | supported by the National Natural Science Foundation of China(Nos.60907020,91338116,and 61007046);the Key Science and Technology Project of Changchun(No.13KG31) |
| 摘 要： | We propose and experimentally demonstrate a multi-wavelength thulium-doped fiber（TDF） laser based on all-fiber Mach–Zehnder interferometer（MZI） at 1.9 mm. Here a segment of 4 m single-mode TDF is pumped by 1568 nm fiber laser for 2 mm band optical gain. The MZI includes two cascaded 3 d B coupler. A segment of 3.5 m long un-pumped polarization-maintaining TDF and polarization controller（PC） are joined in the ring cavity to suppress the mode competition. Multi-wavelength lasers at 1.9 mm with wavelength number from one to four are obtained by adjusting the PC and the stability of output power of multi-wavelength fiber laser is analyzed. |
| 关 键 词： | 多波长光纤激光器 多波长激光器 全光纤 干涉仪 稳定性 马赫 掺铥 激光器泵浦 |
| 收稿时间： | 2014/6/18 |
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