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High energy Er-doped Q-switched fiber laser with WS2 saturable absorber
Li, Lu1; Wang, Yonggang2; Wang, Zhen Fu2; Wang, Xi2; Yang, Guowen2
Department瞬态光学技术国家重点实验室
2018
Source PublicationOPTICS COMMUNICATIONS
ISSN0030-4018
Volume406Pages:80-84
Contribution Rank1
Abstract

The report presents a stable Q-switched Er-doped fiber (EDF) laser with WS2-based saturable absorber (SA). The SA is obtained by mixing WS2 dispersion with polyvinyl alcohol (PVA) into polystyrene cells, and then evaporating them to form WS2/PVA film. The modulation depth (MD) of WS2/PVA is 2% and the saturable intensity (I-sat) is 27.2 MW/cm(2). Employing the WS2/PVA film into EDF laser cavity, stable Q-switched operation is achieved with central wavelength of 1560 nm. The repetition rate can be tuned from 16.15 to 60.88 kHz with increasing pump power from 30 to 320 mW. The single pulse energy increases from 82 to 195 nJ and then decreases down to 156 nJ with increasing pump power from 30 to 320 mW. The pulse width shows the same variation trend. The shortest pulse duration of 2.396 mu s and the maximum single pulse energy of 195 nJ are obtained at the pump power of 220 mW. To the best of our knowledge, 195 nJ is the largest single pulse energy at 1.55 mu m region with TMDs as Q-switcher. The signal-to-noise ratio (SNR) is measured to be 60 dB at the pump power of 130 mW. The long term stability of working is good too. The experimental results evidently show that the WS2/PVA SA can work as a promising Q-switcher for high power fiber lasers. (C) 2017 Elsevier B.V. All rights reserved.

SubtypeArticle
KeywordFiber Laser Q-switched Saturable Absorber
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.optcom.2017.01.007
Indexed BySCI ; EI
WOS KeywordTRANSITION-METAL DICHALCOGENIDES ; MOLYBDENUM-DISULFIDE MOS2 ; ULTRA-FAST PHOTONICS ; BLACK PHOSPHORUS ; PULSE GENERATION ; ABSORPTION ; OPTOELECTRONICS ; DARK
Language英语
WOS Research AreaOptics
Funding OrganizationNational Natural Science Foundation of China(61378024) ; Science and the Open Research Fund of State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences(SKLST201403)
WOS SubjectOptics
WOS IDWOS:000415603700013
EI Accession Number20170303252905
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/29382
Collection瞬态光学技术国家重点实验室
Affiliation1.Xian Univ Posts & Telecommun, Sch Sci, Xian 710121, Shaanxi, Peoples R China
2.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Li, Lu,Wang, Yonggang,Wang, Zhen Fu,et al. High energy Er-doped Q-switched fiber laser with WS2 saturable absorber[J]. OPTICS COMMUNICATIONS,2018,406:80-84.
APA Li, Lu,Wang, Yonggang,Wang, Zhen Fu,Wang, Xi,&Yang, Guowen.(2018).High energy Er-doped Q-switched fiber laser with WS2 saturable absorber.OPTICS COMMUNICATIONS,406,80-84.
MLA Li, Lu,et al."High energy Er-doped Q-switched fiber laser with WS2 saturable absorber".OPTICS COMMUNICATIONS 406(2018):80-84.
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