naa a22 4500 510729584 CHVBK 20180411082947.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s12200-013-0312-3 doi (NATIONALLICENCE)springer-10.1007/s12200-013-0312-3 Transient Bragg fiber gratings formed by unpumped thulium doped fiber [Elektronische Daten] [Shui Zhao, Ping Lu, Li Chen, Deming Liu, Jiangshan Zhang] A theoretical introduction of saturable absorber based on standing-wave saturation effects as a transient fiber Bragg grating (FBG) was presented. The central wavelength of the transient FBG was located in 2 μm. The factors affecting the bandwidth and the reflectivity of the transient FBG were analyzed. The linewidth and reflectivity as the function of doped fiber length and doping concentration were correspondingly simulated by Matlab software. It was found that the larger the doping concentration and the fiber length were, the smaller the bandwidth was. These results suggest that the performance of the transient FBG can be optimized by choosing the appropriate length of doped fiber and the larger doping concentration, which can be used as a reference for the narrow-linewidth fiber laser around 2 μm. Higher Education Press and Springer-Verlag Berlin Heidelberg, 2013 narrow-linewidth fiber laser nationallicence saturable absorber nationallicence thulium doped fiber (TDF) nationallicence Zhao Shui National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, 430074, Wuhan, China aut Lu Ping National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, 430074, Wuhan, China aut Chen Li National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, 430074, Wuhan, China aut Liu Deming National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, 430074, Wuhan, China aut Zhang Jiangshan Department of Electronics and Information Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China aut Frontiers of Optoelectronics SP Higher Education Press 6/2(2013-06-01), 180-184 2095-2759 6:2<180 2013 6 12200 https://doi.org/10.1007/s12200-013-0312-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12200-013-0312-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhao Shui National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, 430074, Wuhan, China aut NATIONALLICENCE 700 1- Lu Ping National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, 430074, Wuhan, China aut NATIONALLICENCE 700 1- Chen Li National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, 430074, Wuhan, China aut NATIONALLICENCE 700 1- Liu Deming National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, 430074, Wuhan, China aut NATIONALLICENCE 700 1- Zhang Jiangshan Department of Electronics and Information Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China aut NATIONALLICENCE 773 0- Frontiers of Optoelectronics SP Higher Education Press 6/2(2013-06-01), 180-184 2095-2759 6:2<180 2013 6 12200 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer