journal article·2019-03

BN as a Saturable Absorber for a Passively Mode‐Locked 2 µm Solid‐State Laser

Linjun Li, Xining Yang, Long Zhou, Wenqiang Xie, Yunfeng Bai, Gangchao Ye, Yingjie Shen, Zhiwei Lv, Han Zhang, Minghua Chen, Yuqiang Yang, Wenlong Yang, Xiaoming Duan

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Abstract

Boron nitride (BN) nanosheets are prepared using an ultrasonic decomposition method and demonstrated nonlinear absorption characteristics that saturated at near 2 µm. A passively mode‐locked Tm:YAP laser was perfectly implemented with the BN nanosheets as a saturable absorber (SA). In the passively Q‐switched mode‐locked mode, an average output power of 880 mW with a pulse duration of 478.83 ps was achieved using an incident pump power of 26.46 W, corresponding to an optical–optical conversion efficiency of 3.33%. A pulse peak power of 19.03 W was acquired at 1937.0 nm from the mode‐locked Tm:YAP laser.
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Research context

OpenAlex topics: Advanced Fiber Laser Technologies · Diamond and Carbon-based Materials Research · Nonlinear Optical Materials Studies

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Affiliations

Heilongjiang Province Key Laboratory of Optoelectronics and Laser Technology & Heilongjiang Province Engineering Technology Research Center of Solid‐State Laser Technology and Application Heilongjiang Institute of Technology Harbin 150050 China

School of Electronic and Information Engineering Hebei University of Technology Tianjin 300401 China

School of Opto‐Electronic Information Science and Technology Yantai University Yantai 264005 China

International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education College of Optoelectronic Engineering Shenzhen University Shenzhen 518060 China

The Higher Educational Key Laboratory for Measuring & Control Technology and Instrumentations of Heilongjiang Province Harbin University of Science and Technology Harbin 150080 China

College of Sciences Harbin University of Science and Technology Harbin 150080 China

National Key Laboratory of Tunable Laser Technology Harbin Institute of Technology Harbin 15000 China

Funding

National Natural Science Foundation of China · Heilongjiang Province Science Foundation for Youths

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