Burst-mode pulse generation in passively mode-locked all-fiber green/orange lasers at 543 nm and 602 nm  

作　　者：QIUJUN RUAN JINHAI ZOU CHUNNA FENG TINGTING CHEN HANG WANG ZHIPENG DONG ZHENGQIAN LUO 

机构地区：[1]Fujian Key Laboratory of Ultrafast Laser Technology and Applications,School of Electronic Science and Engineering,Xiamen University,Xiamen 361005,China [2]Shenzhen Research Institution of Xiamen University,Shenzhen 518000,China

出　　处：《Photonics Research》2024年第6期1231-1238,共8页光子学研究（英文版）

基　　金：National Natural Science Foundation of China(62235014,62022069,62305275);Shenzhen Science and Technology Projects(JCYJ20210324115813037).

摘　　要：We report on the experimental realization of,to the best of our knowledge,the first green and orange passively mode-locked all-fiber lasers.Stable mode-locking in the burst-pulse status is achieved at the wavelengths of 543.3 nm and 602.5 nm.The figure-9 cavity comprises the fiber end-facet mirror,gain fiber(Ho^(3+):ZBLAN fiber or Pr^(3+)/Yb^(3+):ZBLAN fiber),and fiber loop mirror(FLM).The FLM with long 460 HP fiber is not only used as an output mirror,but also acts as a nonlinear optical loop mirror for initiating visible-wavelength mode-locking.The green/orange mode-locked fiber lasers with the fundamental repetition rates of 3.779/5.662 MHz produce long bursts containing ultrashort pulses with the 0.85/0.76 GHz intra-burst repetition rates,respectively.The ultrashort intra-burst pulses stem from the dissipative four-wave-mixing effect in the highly nonlinear FLM as well as the intracavity Fabry–Perot filtering.Long bursts of 22.2/11.6 ns with ultrashort pulses of 87/62 ps are obtained in our experiment.The visible-wavelength passively mode-locked lasers in an all-fiber configuration and burst-mode would represent an important step towards miniaturized ultrafast fiber lasers and may contribute to the applications in ablation-cooling micromachining,biomedicine imaging,and scientific research.

关 键 词：fiber passive pulse 

分 类 号：TN248[电子电信—物理电子学]