Photonics Research, 2019, 7 (10): 10001182, Published Online: Oct. 8, 2019  

Zeolite templated carbon nanodots for broadband ultrafast pulsed fiber laser generation Download: 611次

Author Affiliations
1 Center for Advanced Material Diagnostic Technology, College of Engineering Physics, Shenzhen Technology University, Shenzhen 518118, China
2 Shenzhen Key Laboratory of Laser Engineering, Shenzhen University, Shenzhen 518060, China
3 College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China
4 Institute of Applied Physics & Materials Engineering, Faculty of Science and Technology, University of Macau, Macau, China
Abstract
Carbon nanodots (C-dots) with a uniform size of about 2 nm are synthesized via in situ pyrolysis of n-propylamine that is confined in the nanochannels of zeolite Linde Type A (LTA). The as-synthesized C-dots@LTA composite shows nonlinear optical saturable absorption properties in a broad wavelength band and can be used as saturable absorber (SA) to generate ultrafast pulsed fiber lasers. By inserting a zeolite LTA single crystal hosting C-dots into the fiber laser cavity, mode-locked fiber lasers with long-term operation stability at 1.5 μm and 1 μm are achieved. These results show that the C-dots@LTA are a promising SA material for ultrafast pulsed fiber laser generation in a broad wavelength band. To the best of our knowledge, this is the first demonstration of a C-dots@LTA-based mode-locked fiber laser.

Xintong Xu, Jiaqi Chen, Wentao Shi, Dalin Sun, Shaowen Chu, Lang Sun, Wenfei Zhang, Yanping Chen, Jianpang Zhai, Shuangchen Ruan, Zikang Tang. Zeolite templated carbon nanodots for broadband ultrafast pulsed fiber laser generation[J]. Photonics Research, 2019, 7(10): 10001182.

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