caa a22 4500 606243909 CHVBK 20210128101327.0 cr unu---uuuuu 210128e20150901xx s 000 0 eng 10.1007/s12596-015-0264-7 doi (NATIONALLICENCE)springer-10.1007/s12596-015-0264-7 Multi-wavelength narrow linewidth thulium-doped fiber laser operating at 1.9μm using a tunable Sagnac fiber period filter [Elektronische Daten] [Tianshu Wang, Wanzhuo Ma, Peng Zhang, Qingsong Jia, Jing Zhang, Huilin Jiang] We demonstrate a tunable multi-wavelength thulium-doped fiber laser (TDFL). A Sagnac fiber period filter is employed to achieve the tunable multi-wavelength fiber laser and consists of a 3-dB coupler, a segment of 4m long polarization maintained thulium-doped fiber (PM-TDF) and a polarization controller (PC). Multi-wavelength laser are observed in the wavelength region of 1.9μm, and the side-mode suppression ratio (SMSR) of the multi-wavelength fiber laser is over 55dB with 1W pump power at 1.56μm. By adjusting PC, tunable range of output laser spectrum from 1955 to 1962nm can be obtained with single-wavelength laser. In addition, the linewidth of the laser is narrower due to the use of a fiber loop for suppressing multimode oscillation. This fiber laser around 1.9μm wavelength are useful mid-infrared laser generation, free space laser communications, medicine and biomedical, coherent laser radar for remote atmospheric sensing, pump for nonlinear frequency conversion based on soliton self-frequency shift and second-harmonic generation. The Optical Society of India, 2015 Thulium-doped fiber laser nationallicence Multi-wavelength nationallicence Tunable nationallicence Narrow linewidth nationallicence Sagnac fiber filter nationallicence Wang Tianshu National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, 7186 Weixing Road, 130022, Changchun, Jilin, People's Republic of China aut Ma Wanzhuo National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, 7186 Weixing Road, 130022, Changchun, Jilin, People's Republic of China aut Zhang Peng National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, 7186 Weixing Road, 130022, Changchun, Jilin, People's Republic of China aut Jia Qingsong National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, 7186 Weixing Road, 130022, Changchun, Jilin, People's Republic of China aut Zhang Jing National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, 7186 Weixing Road, 130022, Changchun, Jilin, People's Republic of China aut Jiang Huilin National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, 7186 Weixing Road, 130022, Changchun, Jilin, People's Republic of China aut Journal of Optics Springer India 44/3(2015-09-01), 210-214 0972-8821 44:3<210 2015 44 12596 https://doi.org/10.1007/s12596-015-0264-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s12596-015-0264-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang Tianshu National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, 7186 Weixing Road, 130022, Changchun, Jilin, People's Republic of China aut NATIONALLICENCE 700 1- Ma Wanzhuo National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, 7186 Weixing Road, 130022, Changchun, Jilin, People's Republic of China aut NATIONALLICENCE 700 1- Zhang Peng National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, 7186 Weixing Road, 130022, Changchun, Jilin, People's Republic of China aut NATIONALLICENCE 700 1- Jia Qingsong National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, 7186 Weixing Road, 130022, Changchun, Jilin, People's Republic of China aut NATIONALLICENCE 700 1- Zhang Jing National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, 7186 Weixing Road, 130022, Changchun, Jilin, People's Republic of China aut NATIONALLICENCE 700 1- Jiang Huilin National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, 7186 Weixing Road, 130022, Changchun, Jilin, People's Republic of China aut NATIONALLICENCE 773 0- Journal of Optics Springer India 44/3(2015-09-01), 210-214 0972-8821 44:3<210 2015 44 12596